| Country | Country | date | obsValue |
|---|---|---|---|
| Austria | 2005 | 1.714 | |
| Austria | 2006 | 6.019 | |
| Austria | 2007 | 6.12 | |
| Austria | 2008 | 7.159 | |
| Austria | 2009 | 7.158 | |
| Austria | 2010 | 7.096 | |
| Austria | 2011 | 7.332 | |
| Austria | 2012 | 7.344 | |
| Austria | 2013 | 7.158 | |
| Belgium | 2005 | 4.803 | |
| Belgium | 2006 | 5.543 | |
| Belgium | 2007 | 6.152 | |
| Belgium | 2008 | 6.409 | |
| Belgium | 2009 | 7.444 | |
| Belgium | 2010 | 7.769 | |
| Belgium | 2011 | 8.092 | |
| Belgium | 2012 | 8.207 | |
| Belgium | 2013 | 8.519 | |
| Bulgaria | 2007 | 1.873 | |
| Bulgaria | 2008 | 3.51 | |
| Bulgaria | 2009 | 3.426 | |
| Bulgaria | 2010 | 4.774 | |
| Bulgaria | 2011 | 4.529 | |
| Bulgaria | 2012 | 4.419 | |
| Bulgaria | 2013 | 4.04 | |
| Croatia | 2011 | 0.0 | |
| Croatia | 2012 | 3.5 | |
| Croatia | 2013 | 3.439 | |
| Cyprus | 2009 | 2.252 | |
| Cyprus | 2010 | 2.253 | |
| Cyprus | 2011 | 2.528 | |
| Cyprus | 2012 | 2.518 | |
| Cyprus | 2013 | 2.127 | |
| Czech Republic | 2007 | 2.446 | |
| Czech Republic | 2008 | 3.3 | |
| Czech Republic | 2009 | 4.171 | |
| Czech Republic | 2010 | 4.386 | |
| Czech Republic | 2011 | 4.585 | |
| Czech Republic | 2012 | 4.116 | |
| Czech Republic | 2013 | 4.699 | |
| Denmark | 2006 | 8.853 | |
| Denmark | 2007 | 14.665 | |
| Denmark | 2008 | 12.77 | |
| Denmark | 2009 | 12.625 | |
| Denmark | 2010 | 12.488 | |
| Denmark | 2011 | 13.918 | |
| Denmark | 2012 | 11.497 | |
| Denmark | 2013 | 10.599 | |
| Estonia | 2007 | 3.846 | |
| Estonia | 2008 | 3.753 | |
| Estonia | 2009 | 2.982 | |
| Estonia | 2010 | 3.496 | |
| Estonia | 2011 | 3.461 | |
| Estonia | 2012 | 3.324 | |
| Estonia | 2013 | 2.331 | |
| Finland | 2005 | 2.516 | |
| Finland | 2006 | 5.938 | |
| Finland | 2007 | 7.274 | |
| Finland | 2008 | 8.473 | |
| Finland | 2009 | 8.667 | |
| Finland | 2010 | 8.391 | |
| Finland | 2011 | 8.679 | |
| Finland | 2012 | 8.749 | |
| Finland | 2013 | 9.363 | |
| France | 2006 | 0.064 | |
| France | 2007 | 1.96 | |
| France | 2008 | 3.559 | |
| France | 2009 | 4.504 | |
| France | 2010 | 5.184 | |
| France | 2011 | 5.621 | |
| France | 2012 | 5.519 | |
| France | 2013 | 5.744 | |
| Germany | 2006 | 7.284 | |
| Germany | 2007 | 5.767 | |
| Germany | 2008 | 6.807 | |
| Germany | 2009 | 8.163 | |
| Germany | 2010 | 7.864 | |
| Germany | 2011 | 7.285 | |
| Germany | 2012 | 7.172 | |
| Germany | 2013 | 7.476 | |
| Greece | 2005 | 0.022 | |
| Greece | 2006 | 0.85 | |
| Greece | 2007 | 2.194 | |
| Greece | 2008 | 3.525 | |
| Greece | 2009 | 5.031 | |
| Greece | 2010 | 4.1 | |
| Greece | 2011 | 3.466 | |
| Greece | 2012 | 3.04 | |
| Greece | 2013 | 3.162 | |
| Hungary | 2005 | 1.207 | |
| Hungary | 2006 | 1.832 | |
| Hungary | 2007 | 2.784 | |
| Hungary | 2008 | 3.67 | |
| Hungary | 2009 | 3.888 | |
| Hungary | 2010 | 3.335 | |
| Hungary | 2011 | 3.259 | |
| Hungary | 2012 | 3.638 | |
| Hungary | 2013 | 4.411 | |
| Iceland | 2009 | 2.148 | |
| Iceland | 2010 | 3.33 | |
| Iceland | 2013 | 4.865 | |
| Ireland | 2007 | 9.799 | |
| Ireland | 2008 | 8.765 | |
| Ireland | 2009 | 8.102 | |
| Ireland | 2010 | 7.826 | |
| Ireland | 2011 | 7.111 | |
| Ireland | 2012 | 7.491 | |
| Ireland | 2013 | 7.722 | |
| Italy | 2007 | 5.583 | |
| Italy | 2008 | 6.49 | |
| Italy | 2009 | 7.703 | |
| Italy | 2010 | 8.474 | |
| Italy | 2011 | 8.538 | |
| Italy | 2012 | 6.679 | |
| Italy | 2013 | 6.385 | |
| Latvia | 2007 | 2.025 | |
| Latvia | 2008 | 2.086 | |
| Latvia | 2009 | 1.91 | |
| Latvia | 2010 | 1.73 | |
| Latvia | 2011 | 1.845 | |
| Latvia | 2012 | 1.929 | |
| Latvia | 2013 | 2.166 | |
| Liechtenstein | 2011 | 3.265 | |
| Liechtenstein | 2012 | 2.859 | |
| Liechtenstein | 2013 | 5.888 | |
| Lithuania | 2005 | 0.344 | |
| Lithuania | 2006 | 1.805 | |
| Lithuania | 2007 | 2.249 | |
| Lithuania | 2008 | 2.277 | |
| Lithuania | 2009 | 1.7 | |
| Lithuania | 2010 | 2.088 | |
| Lithuania | 2011 | 2.747 | |
| Lithuania | 2012 | 3.278 | |
| Lithuania | 2013 | 3.794 | |
| Luxembourg | 2006 | 7.206 | |
| Luxembourg | 2007 | 7.326 | |
| Luxembourg | 2008 | 7.041 | |
| Luxembourg | 2009 | 8.21 | |
| Luxembourg | 2010 | 8.153 | |
| Luxembourg | 2011 | 8.269 | |
| Luxembourg | 2012 | 8.19 | |
| Luxembourg | 2013 | 8.343 | |
| Malta | 2005 | 0.0 | |
| Malta | 2006 | 0.0 | |
| Malta | 2007 | 0.0 | |
| Malta | 2008 | 0.0 | |
| Malta | 2009 | 1.639 | |
| Malta | 2010 | 2.087 | |
| Malta | 2011 | 4.615 | |
| Malta | 2012 | 2.575 | |
| Malta | 2013 | 3.924 | |
| Netherlands | 2005 | 4.16 | |
| Netherlands | 2006 | 4.495 | |
| Netherlands | 2007 | 4.738 | |
| Netherlands | 2008 | 5.093 | |
| Netherlands | 2009 | 5.173 | |
| Netherlands | 2010 | 6.158 | |
| Netherlands | 2011 | 6.476 | |
| Netherlands | 2012 | 6.124 | |
| Netherlands | 2013 | 5.812 | |
| Norway | 2005 | 21.231 | |
| Norway | 2006 | 17.466 | |
| Norway | 2007 | 18.968 | |
| Norway | 2008 | 19.416 | |
| Norway | 2009 | 18.956 | |
| Norway | 2010 | 17.973 | |
| Norway | 2011 | 18.119 | |
| Norway | 2012 | 16.483 | |
| Norway | 2013 | 16.68 | |
| Poland | 2006 | 0.214 | |
| Poland | 2007 | 0.396 | |
| Poland | 2008 | 0.581 | |
| Poland | 2009 | 2.304 | |
| Poland | 2010 | 2.315 | |
| Poland | 2011 | 3.39 | |
| Poland | 2012 | 3.512 | |
| Poland | 2013 | 3.411 | |
| Portugal | 2006 | 0.359 | |
| Portugal | 2007 | 2.254 | |
| Portugal | 2008 | 3.31 | |
| Portugal | 2009 | 3.597 | |
| Portugal | 2010 | 3.751 | |
| Portugal | 2011 | 4.661 | |
| Portugal | 2012 | 3.6 | |
| Portugal | 2013 | 4.143 | |
| Romania | 2007 | 0.019 | |
| Romania | 2008 | 0.269 | |
| Romania | 2009 | 1.511 | |
| Romania | 2010 | 1.098 | |
| Romania | 2011 | 0.887 | |
| Romania | 2012 | 0.97 | |
| Slovakia | 2005 | 0.478 | |
| Slovakia | 2006 | 1.341 | |
| Slovakia | 2007 | 2.265 | |
| Slovakia | 2008 | 3.079 | |
| Slovakia | 2009 | 3.332 | |
| Slovakia | 2010 | 3.541 | |
| Slovakia | 2011 | 3.788 | |
| Slovakia | 2012 | 3.679 | |
| Slovakia | 2013 | 3.55 | |
| Slovenia | 2009 | 2.709 | |
| Slovenia | 2010 | 3.322 | |
| Slovenia | 2011 | 3.417 | |
| Slovenia | 2012 | 3.651 | |
| Slovenia | 2013 | 2.116 | |
| Spain | 2006 | 2.5 | |
| Spain | 2007 | 4.834 | |
| Spain | 2008 | 5.14 | |
| Spain | 2009 | 1.943 | |
| Spain | 2010 | 2.288 | |
| Spain | 2011 | 2.645 | |
| Spain | 2012 | 2.854 | |
| Spain | 2013 | 3.684 | |
| Sweden | 2005 | 5.095 | |
| Sweden | 2006 | 13.511 | |
| Sweden | 2007 | 13.918 | |
| Sweden | 2008 | 13.439 | |
| Sweden | 2009 | 13.888 | |
| Sweden | 2010 | 14.447 | |
| Sweden | 2011 | 15.626 | |
| Sweden | 2012 | 14.935 | |
| Sweden | 2013 | 15.401 | |
| United Kingdom | 2007 | 2.455 | |
| United Kingdom | 2008 | 5.511 | |
| United Kingdom | 2009 | 5.881 | |
| United Kingdom | 2011 | 0.0 | |
| United Kingdom | 2012 | 0.0 |