| Date | Country | obsValue |
|---|---|---|
| 2004 | Estonia | 0.181 |
| 2004 | Italy | 1.213 |
| 2004 | Lithuania | 0.41 |
| 2004 | Portugal | 0.424 |
| 2004 | Germany | 2.212 |
| 2004 | France | 1.475 |
| 2004 | Ireland | 0.04 |
| 2004 | Slovenia | 0.85 |
| 2004 | Hungary | 0.917 |
| 2004 | Malta | 0.0 |
| 2004 | Netherlands | 0.464 |
| 2004 | Poland | 1.441 |
| 2004 | Serbia | 0.452 |
| 2004 | United Kingdom | 0.346 |
| 2004 | Albania | 0.099 |
| 2004 | Cyprus | 0.0 |
| 2004 | Finland | 1.01 |
| 2004 | Iceland | 0.0 |
| 2004 | Norway | 3.074 |
| 2004 | Sweden | 6.287 |
| 2004 | Czech Republic | 1.57 |
| 2004 | Czechia | 1.57 |
| 2004 | Austria | 4.533 |
| 2004 | Croatia | 0.993 |
| 2004 | North Macedonia | 0.185 |
| 2004 | Romania | 1.6 |
| 2004 | Denmark | 0.445 |
| 2004 | Greece | 0.078 |
| 2004 | Spain | 1.034 |
| 2004 | Latvia | 2.139 |
| 2004 | Belgium | 0.526 |
| 2004 | Bulgaria | 0.876 |
| 2004 | Luxembourg | 0.126 |
| 2004 | Slovakia | 1.459 |
| 2004 | Turkey | 0.271 |
| 2004 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2005 | Lithuania | 0.621 |
| 2005 | Netherlands | 0.45 |
| 2005 | Albania | 0.095 |
| 2005 | Czech Republic | 0.943 |
| 2005 | Czechia | 0.943 |
| 2005 | Germany | 4.029 |
| 2005 | Greece | 0.053 |
| 2005 | France | 2.058 |
| 2005 | Ireland | 0.07 |
| 2005 | Italy | 1.048 |
| 2005 | Norway | 3.053 |
| 2005 | Portugal | 0.45 |
| 2005 | Cyprus | 0.0 |
| 2005 | Spain | 1.266 |
| 2005 | Hungary | 0.914 |
| 2005 | Serbia | 0.445 |
| 2005 | Slovakia | 1.63 |
| 2005 | United Kingdom | 0.47 |
| 2005 | Finland | 0.91 |
| 2005 | Iceland | 0.0 |
| 2005 | Slovenia | 0.831 |
| 2005 | Malta | 0.0 |
| 2005 | Austria | 5.067 |
| 2005 | Denmark | 0.443 |
| 2005 | North Macedonia | 0.222 |
| 2005 | Estonia | 0.212 |
| 2005 | Latvia | 2.389 |
| 2005 | Poland | 1.589 |
| 2005 | Sweden | 6.164 |
| 2005 | Belgium | 0.604 |
| 2005 | Bulgaria | 0.797 |
| 2005 | Croatia | 1.023 |
| 2005 | Luxembourg | 0.145 |
| 2005 | Montenegro | 0.449 |
| 2005 | Romania | 1.648 |
| 2005 | Turkey | 0.267 |
| 2005 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2006 | Germany | 6.775 |
| 2006 | Estonia | 0.166 |
| 2006 | Spain | 0.837 |
| 2006 | Lithuania | 1.872 |
| 2006 | Albania | 0.0 |
| 2006 | France | 2.33 |
| 2006 | Ireland | 0.101 |
| 2006 | Latvia | 2.165 |
| 2006 | Montenegro | 0.455 |
| 2006 | Netherlands | 0.803 |
| 2006 | Norway | 3.293 |
| 2006 | Poland | 1.65 |
| 2006 | Hungary | 1.124 |
| 2006 | Serbia | 0.429 |
| 2006 | Slovakia | 3.49 |
| 2006 | United Kingdom | 0.728 |
| 2006 | Czech Republic | 1.201 |
| 2006 | Czechia | 1.201 |
| 2006 | Finland | 0.956 |
| 2006 | Romania | 1.353 |
| 2006 | Greece | 0.728 |
| 2006 | Portugal | 1.631 |
| 2006 | Austria | 7.533 |
| 2006 | Croatia | 1.003 |
| 2006 | Iceland | 0.0 |
| 2006 | North Macedonia | 0.256 |
| 2006 | Italy | 0.995 |
| 2006 | Sweden | 7.065 |
| 2006 | Slovenia | 1.056 |
| 2006 | Belgium | 0.56 |
| 2006 | Bulgaria | 0.971 |
| 2006 | Cyprus | 0.0 |
| 2006 | Denmark | 0.521 |
| 2006 | Luxembourg | 0.173 |
| 2006 | Malta | 0.0 |
| 2006 | Turkey | 0.24 |
| 2006 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2007 | Denmark | 0.535 |
| 2007 | Estonia | 0.152 |
| 2007 | Latvia | 1.666 |
| 2007 | Romania | 2.435 |
| 2007 | Slovenia | 1.473 |
| 2007 | Slovakia | 4.033 |
| 2007 | Austria | 8.174 |
| 2007 | France | 3.971 |
| 2007 | Norway | 3.723 |
| 2007 | Greece | 1.261 |
| 2007 | Spain | 1.375 |
| 2007 | Hungary | 1.54 |
| 2007 | Luxembourg | 2.185 |
| 2007 | Serbia | 0.665 |
| 2007 | United Kingdom | 1.131 |
| 2007 | Czech Republic | 1.402 |
| 2007 | Czechia | 1.402 |
| 2007 | Germany | 7.525 |
| 2007 | Finland | 1.025 |
| 2007 | Ireland | 0.505 |
| 2007 | Cyprus | 0.0 |
| 2007 | Netherlands | 3.137 |
| 2007 | Portugal | 2.433 |
| 2007 | Iceland | 0.07 |
| 2007 | Italy | 0.96 |
| 2007 | North Macedonia | 0.255 |
| 2007 | Malta | 0.0 |
| 2007 | Albania | 0.0 |
| 2007 | Lithuania | 3.796 |
| 2007 | Poland | 1.606 |
| 2007 | Belgium | 0.587 |
| 2007 | Bulgaria | 0.876 |
| 2007 | Croatia | 1.136 |
| 2007 | Montenegro | 0.996 |
| 2007 | Sweden | 7.962 |
| 2007 | Turkey | 0.233 |
| 2007 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2008 | Lithuania | 4.293 |
| 2008 | Serbia | 0.677 |
| 2008 | Austria | 9.519 |
| 2008 | Belgium | 0.616 |
| 2008 | France | 6.169 |
| 2008 | Iceland | 0.107 |
| 2008 | Norway | 5.293 |
| 2008 | Poland | 3.475 |
| 2008 | Slovakia | 4.347 |
| 2008 | Spain | 2.164 |
| 2008 | Hungary | 5.098 |
| 2008 | Italy | 2.578 |
| 2008 | Luxembourg | 2.157 |
| 2008 | Romania | 3.467 |
| 2008 | Czech Republic | 2.656 |
| 2008 | Czechia | 2.656 |
| 2008 | Germany | 6.432 |
| 2008 | Finland | 2.946 |
| 2008 | Ireland | 1.306 |
| 2008 | Malta | 0.0 |
| 2008 | Netherlands | 2.936 |
| 2008 | United Kingdom | 2.297 |
| 2008 | Denmark | 0.54 |
| 2008 | Montenegro | 0.881 |
| 2008 | Portugal | 2.515 |
| 2008 | Slovenia | 1.773 |
| 2008 | Cyprus | 1.921 |
| 2008 | Greece | 1.055 |
| 2008 | North Macedonia | 0.258 |
| 2008 | Turkey | 0.234 |
| 2008 | Albania | 0.0 |
| 2008 | Bulgaria | 0.871 |
| 2008 | Croatia | 1.089 |
| 2008 | Latvia | 1.688 |
| 2008 | Sweden | 8.26 |
| 2008 | Estonia | 0.167 |
| 2008 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2009 | France | 6.573 |
| 2009 | Belgium | 2.134 |
| 2009 | Cyprus | 2.036 |
| 2009 | Hungary | 5.8 |
| 2009 | Italy | 3.83 |
| 2009 | Poland | 5.336 |
| 2009 | Finland | 4.556 |
| 2009 | Luxembourg | 2.215 |
| 2009 | Austria | 11.12 |
| 2009 | Ireland | 1.963 |
| 2009 | Latvia | 1.888 |
| 2009 | Romania | 4.466 |
| 2009 | Slovakia | 5.318 |
| 2009 | Denmark | 0.693 |
| 2009 | Iceland | 0.134 |
| 2009 | Portugal | 3.885 |
| 2009 | Slovenia | 2.251 |
| 2009 | Germany | 5.937 |
| 2009 | Greece | 1.095 |
| 2009 | Spain | 3.71 |
| 2009 | North Macedonia | 0.213 |
| 2009 | Malta | 0.0 |
| 2009 | Norway | 5.552 |
| 2009 | Sweden | 8.91 |
| 2009 | Turkey | 0.188 |
| 2009 | Albania | 0.0 |
| 2009 | Bulgaria | 1.01 |
| 2009 | Croatia | 1.302 |
| 2009 | Lithuania | 4.452 |
| 2009 | Serbia | 1.465 |
| 2009 | Czech Republic | 4.114 |
| 2009 | Czechia | 4.114 |
| 2009 | Estonia | 0.398 |
| 2009 | Montenegro | 0.697 |
| 2009 | Netherlands | 4.52 |
| 2009 | United Kingdom | 2.854 |
| 2009 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2010 | Belgium | 4.723 |
| 2010 | Hungary | 6.074 |
| 2010 | Italy | 4.742 |
| 2010 | Poland | 6.571 |
| 2010 | Cyprus | 1.994 |
| 2010 | Finland | 4.405 |
| 2010 | Montenegro | 0.787 |
| 2010 | Netherlands | 3.345 |
| 2010 | Ireland | 2.518 |
| 2010 | Serbia | 0.672 |
| 2010 | Latvia | 3.978 |
| 2010 | Malta | 0.0 |
| 2010 | Slovakia | 5.267 |
| 2010 | Austria | 10.659 |
| 2010 | Greece | 1.91 |
| 2010 | Spain | 5.017 |
| 2010 | North Macedonia | 0.181 |
| 2010 | Norway | 5.326 |
| 2010 | Sweden | 9.241 |
| 2010 | Slovenia | 3.118 |
| 2010 | Turkey | 0.202 |
| 2010 | Albania | 0.0 |
| 2010 | Bulgaria | 1.425 |
| 2010 | Croatia | 1.129 |
| 2010 | Iceland | 0.196 |
| 2010 | Lithuania | 3.768 |
| 2010 | Romania | 3.367 |
| 2010 | Czech Republic | 5.124 |
| 2010 | Czechia | 5.124 |
| 2010 | Germany | 6.424 |
| 2010 | Denmark | 1.15 |
| 2010 | Estonia | 0.394 |
| 2010 | France | 6.501 |
| 2010 | Luxembourg | 2.075 |
| 2010 | Portugal | 5.548 |
| 2010 | United Kingdom | 3.312 |
| 2010 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2011 | Malta | 2.016 |
| 2011 | Sweden | 11.774 |
| 2011 | Greece | 0.594 |
| 2011 | Hungary | 6.071 |
| 2011 | Italy | 4.987 |
| 2011 | Poland | 6.846 |
| 2011 | Austria | 10.029 |
| 2011 | Czech Republic | 1.181 |
| 2011 | Czechia | 1.181 |
| 2011 | Germany | 6.482 |
| 2011 | Finland | 1.023 |
| 2011 | Luxembourg | 2.34 |
| 2011 | Montenegro | 0.613 |
| 2011 | Netherlands | 5.014 |
| 2011 | Bulgaria | 0.825 |
| 2011 | Cyprus | 0.0 |
| 2011 | Ireland | 5.39 |
| 2011 | Portugal | 0.695 |
| 2011 | Slovakia | 5.53 |
| 2011 | Iceland | 0.874 |
| 2011 | Serbia | 1.879 |
| 2011 | Slovenia | 2.477 |
| 2011 | Spain | 0.821 |
| 2011 | North Macedonia | 0.161 |
| 2011 | Norway | 2.651 |
| 2011 | Turkey | 0.245 |
| 2011 | Albania | 0.0 |
| 2011 | Latvia | 4.09 |
| 2011 | Romania | 2.934 |
| 2011 | Belgium | 4.701 |
| 2011 | Denmark | 3.609 |
| 2011 | Estonia | 0.407 |
| 2011 | France | 0.953 |
| 2011 | Croatia | 1.034 |
| 2011 | Lithuania | 3.8 |
| 2011 | United Kingdom | 3.196 |
| 2011 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2012 | Luxembourg | 2.807 |
| 2012 | Bulgaria | 0.6 |
| 2012 | Greece | 0.895 |
| 2012 | Iceland | 1.366 |
| 2012 | Italy | 6.099 |
| 2012 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2012 | Austria | 9.985 |
| 2012 | Montenegro | 0.736 |
| 2012 | Netherlands | 5.161 |
| 2012 | Poland | 6.462 |
| 2012 | Cyprus | 0.0 |
| 2012 | Finland | 1.066 |
| 2012 | Hungary | 5.907 |
| 2012 | Ireland | 4.862 |
| 2012 | Portugal | 0.807 |
| 2012 | Serbia | 2.001 |
| 2012 | Czech Republic | 6.148 |
| 2012 | Czechia | 6.148 |
| 2012 | Germany | 7.405 |
| 2012 | Spain | 0.938 |
| 2012 | Norway | 3.074 |
| 2012 | Slovenia | 3.252 |
| 2012 | Turkey | 0.27 |
| 2012 | Denmark | 6.407 |
| 2012 | Latvia | 3.995 |
| 2012 | North Macedonia | 0.174 |
| 2012 | Malta | 3.216 |
| 2012 | Albania | 0.0 |
| 2012 | Belgium | 4.836 |
| 2012 | Estonia | 0.414 |
| 2012 | France | 7.378 |
| 2012 | Croatia | 1.053 |
| 2012 | Lithuania | 4.945 |
| 2012 | Romania | 4.925 |
| 2012 | Sweden | 15.156 |
| 2012 | Slovakia | 5.371 |
| 2012 | United Kingdom | 1.649 |
| 2013 | Czech Republic | 6.344 |
| 2013 | Czechia | 6.344 |
| 2013 | Finland | 10.686 |
| 2013 | Portugal | 0.925 |
| 2013 | Serbia | 1.682 |
| 2013 | Hungary | 6.219 |
| 2013 | Iceland | 2.114 |
| 2013 | Albania | 0.0 |
| 2013 | Austria | 9.766 |
| 2013 | Cyprus | 1.127 |
| 2013 | Italy | 5.411 |
| 2013 | Montenegro | 1.097 |
| 2013 | North Macedonia | 0.169 |
| 2013 | Netherlands | 5.285 |
| 2013 | Poland | 6.59 |
| 2013 | Slovenia | 3.769 |
| 2013 | Ireland | 5.702 |
| 2013 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2013 | Luxembourg | 4.04 |
| 2013 | Malta | 3.445 |
| 2013 | Sweden | 20.016 |
| 2013 | Slovakia | 5.984 |
| 2013 | Greece | 0.966 |
| 2013 | Croatia | 4.432 |
| 2013 | Norway | 3.309 |
| 2013 | Turkey | 0.264 |
| 2013 | Germany | 7.307 |
| 2013 | Denmark | 6.579 |
| 2013 | Spain | 1.053 |
| 2013 | Latvia | 4.029 |
| 2013 | Belgium | 5.013 |
| 2013 | Bulgaria | 5.831 |
| 2013 | Estonia | 0.414 |
| 2013 | France | 7.57 |
| 2013 | Lithuania | 4.809 |
| 2013 | Romania | 5.445 |
| 2013 | United Kingdom | 1.767 |
| 2014 | Portugal | 3.667 |
| 2014 | Sweden | 21.914 |
| 2014 | France | 8.224 |
| 2014 | Hungary | 6.898 |
| 2014 | Malta | 4.746 |
| 2014 | Belgium | 5.776 |
| 2014 | Cyprus | 2.68 |
| 2014 | Spain | 1.121 |
| 2014 | Croatia | 4.295 |
| 2014 | Luxembourg | 5.515 |
| 2014 | Montenegro | 1.071 |
| 2014 | Netherlands | 6.501 |
| 2014 | Poland | 6.247 |
| 2014 | Slovakia | 7.604 |
| 2014 | Ireland | 5.254 |
| 2014 | Iceland | 2.763 |
| 2014 | Serbia | 1.166 |
| 2014 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2014 | Austria | 11.004 |
| 2014 | Albania | 0.0 |
| 2014 | Greece | 1.306 |
| 2014 | Norway | 6.618 |
| 2014 | Slovenia | 2.876 |
| 2014 | Turkey | 0.299 |
| 2014 | Bulgaria | 5.683 |
| 2014 | Czech Republic | 6.901 |
| 2014 | Czechia | 6.901 |
| 2014 | Germany | 6.906 |
| 2014 | Denmark | 6.675 |
| 2014 | Finland | 24.667 |
| 2014 | Italy | 5.02 |
| 2014 | Latvia | 4.075 |
| 2014 | Romania | 4.675 |
| 2014 | Estonia | 0.388 |
| 2014 | Lithuania | 4.334 |
| 2014 | North Macedonia | 0.197 |
| 2014 | United Kingdom | 1.864 |
| 2015 | Czech Republic | 6.453 |
| 2015 | Czechia | 6.453 |
| 2015 | Poland | 5.624 |
| 2015 | Portugal | 7.431 |
| 2015 | Bulgaria | 6.444 |
| 2015 | Belgium | 3.855 |
| 2015 | Cyprus | 2.521 |
| 2015 | Germany | 6.573 |
| 2015 | Spain | 1.256 |
| 2015 | Croatia | 3.626 |
| 2015 | Netherlands | 5.437 |
| 2015 | Albania | 0.0 |
| 2015 | Ireland | 5.878 |
| 2015 | Iceland | 6.409 |
| 2015 | Italy | 6.505 |
| 2015 | Luxembourg | 6.66 |
| 2015 | Sweden | 25.124 |
| 2015 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2015 | Finland | 24.809 |
| 2015 | Hungary | 7.083 |
| 2015 | Montenegro | 1.188 |
| 2015 | Norway | 8.868 |
| 2015 | Romania | 5.488 |
| 2015 | Serbia | 1.178 |
| 2015 | Slovakia | 8.498 |
| 2015 | Turkey | 0.304 |
| 2015 | Denmark | 6.658 |
| 2015 | Greece | 1.081 |
| 2015 | Latvia | 3.923 |
| 2015 | Malta | 4.779 |
| 2015 | Austria | 11.371 |
| 2015 | Estonia | 0.389 |
| 2015 | France | 8.354 |
| 2015 | Lithuania | 4.565 |
| 2015 | North Macedonia | 0.172 |
| 2015 | Slovenia | 2.242 |
| 2015 | United Kingdom | 4.485 |
| 2016 | Malta | 5.352 |
| 2016 | Portugal | 7.661 |
| 2016 | Slovakia | 7.706 |
| 2016 | Bulgaria | 7.166 |
| 2016 | Serbia | 1.232 |
| 2016 | Slovenia | 1.602 |
| 2016 | Belgium | 5.976 |
| 2016 | Finland | 9.038 |
| 2016 | Croatia | 1.255 |
| 2016 | North Macedonia | 0.134 |
| 2016 | Netherlands | 4.858 |
| 2016 | Poland | 3.925 |
| 2016 | Albania | 0.0 |
| 2016 | Spain | 5.311 |
| 2016 | Ireland | 5.155 |
| 2016 | Iceland | 7.23 |
| 2016 | Italy | 7.414 |
| 2016 | Luxembourg | 5.923 |
| 2016 | Sweden | 31.148 |
| 2016 | Czech Republic | 6.428 |
| 2016 | Czechia | 6.428 |
| 2016 | Germany | 7.018 |
| 2016 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2016 | Cyprus | 2.688 |
| 2016 | Montenegro | 1.102 |
| 2016 | Norway | 17.563 |
| 2016 | Romania | 6.169 |
| 2016 | Turkey | 0.306 |
| 2016 | Greece | 1.613 |
| 2016 | Hungary | 7.555 |
| 2016 | Latvia | 2.756 |
| 2016 | Austria | 10.637 |
| 2016 | Denmark | 6.756 |
| 2016 | Estonia | 0.411 |
| 2016 | France | 8.693 |
| 2016 | Lithuania | 3.634 |
| 2016 | United Kingdom | 4.996 |
| 2017 | Cyprus | 2.571 |
| 2017 | Estonia | 0.405 |
| 2017 | Italy | 6.484 |
| 2017 | Portugal | 7.934 |
| 2017 | Serbia | 1.178 |
| 2017 | Albania | 0.0 |
| 2017 | Bulgaria | 7.244 |
| 2017 | Czech Republic | 6.58 |
| 2017 | Czechia | 6.58 |
| 2017 | Germany | 7.034 |
| 2017 | Spain | 5.917 |
| 2017 | Ireland | 7.434 |
| 2017 | Netherlands | 5.912 |
| 2017 | Romania | 6.558 |
| 2017 | Croatia | 1.181 |
| 2017 | North Macedonia | 0.131 |
| 2017 | Poland | 4.203 |
| 2017 | Kosovo (under UNSCR 1244/99) | 0.0 |
| 2017 | Malta | 6.797 |
| 2017 | Sweden | 32.112 |
| 2017 | Finland | 18.825 |
| 2017 | Norway | 21.714 |
| 2017 | Slovakia | 7.026 |
| 2017 | Turkey | 0.348 |
| 2017 | Greece | 3.996 |
| 2017 | Hungary | 6.806 |
| 2017 | Luxembourg | 6.435 |
| 2017 | Latvia | 2.544 |
| 2017 | Austria | 9.74 |
| 2017 | Belgium | 6.576 |
| 2017 | Denmark | 6.847 |
| 2017 | France | 9.141 |
| 2017 | Iceland | 7.326 |
| 2017 | Lithuania | 3.689 |
| 2017 | Montenegro | 0.952 |
| 2017 | Slovenia | 2.738 |
| 2017 | United Kingdom | 5.05 |