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.
| Fecha | Valor | Cambiar , % |
|---|---|---|
| 2014 | 8,7 | -6,74 % |
| 2013 | 9,4 | -5,27 % |
| 2012 | 9,9 | -6,53 % |
| 2011 | 10,6 | -0,38 % |
| 2010 | 10,6 | 9,50 % |
| 2009 | 9,7 | 8,76 % |
| 2008 | 8,9 | 8,54 % |
| 2007 | 8,2 | 7,89 % |
| 2006 | 7,6 | 8,57 % |
| 2005 | 7,0 | 7,69 % |
| 2004 | 6,5 | 6,56 % |
| 2003 | 6,1 |