| date | label | share |
|---|---|---|
| 2004 | Municipal waste | 37.6 |
| 2005 | Municipal waste | 38.5 |
| 2006 | Municipal waste | 38.0 |
| 2007 | Municipal waste | 39.6 |
| 2008 | Municipal waste | 39.4 |
| 2009 | Municipal waste | 40.0 |
| 2010 | Municipal waste | 40.2 |
| 2011 | Municipal waste | 40.1 |
| 2012 | Municipal waste | 41.2 |
| 2013 | Municipal waste | 41.6 |
| 2014 | Municipal waste | 44.6 |
| 2015 | Municipal waste | 44.4 |
| 2016 | Municipal waste | 42.9 |
| 2017 | Municipal waste | 43.3 |
| 2018 | Municipal waste | 44.4 |
| 2019 | Municipal waste | 45.4 |