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 , % |
|---|---|---|
| 2013 | 0,0 | |
| 2012 | 0,0 | -100,00 % |
| 2011 | 0,1 | -95,00 % |
| 2010 | 1,0 | -89,58 % |
| 2009 | 9,6 | 6,67 % |
| 2008 | 9,0 | -1,10 % |
| 2007 | 9,1 | 21,33 % |
| 2006 | 7,5 | -21,05 % |
| 2005 | 9,5 | -12,84 % |
| 2004 | 10,9 | -33,94 % |
| 2003 | 16,5 | 15,38 % |
| 2002 | 14,3 |