Ozone-depleting substances are any substance containing chlorine or bromine that destroys the stratospheric ozone layer. The stratospheric ozone absorbs most of the biologically damaging ultraviolet radiation.
| Date | Valeur | Modifier , % |
|---|---|---|
| 2014 | 1,1 | -41,84 % |
| 2013 | 2,0 | -12,50 % |
| 2012 | 2,2 | -10,40 % |
| 2011 | 2,5 | -19,35 % |
| 2010 | 3,1 | -18,42 % |
| 2009 | 3,8 | 15,15 % |
| 2008 | 3,3 | 65,00 % |
| 2007 | 2,0 | 5,26 % |
| 2006 | 1,9 | 72,73 % |
| 2005 | 1,1 | 22,22 % |
| 2004 | 0,9 | 0,00 % |
| 2003 | 0,9 |