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 | Value | Change, % |
|---|---|---|
| 2012 | 324.6 | -33.51% |
| 2011 | 488.2 | -26.91% |
| 2010 | 667.9 | -10.40% |
| 2009 | 745.4 | -9.09% |
| 2008 | 819.9 | -8.35% |
| 2007 | 894.6 | 23.80% |
| 2006 | 722.6 | -18.91% |
| 2005 | 891.1 | -9.76% |
| 2004 | 987.5 | 2.01% |
| 2003 | 968.0 | -9.32% |
| 2002 | 1,067.5 | -2.96% |
| 2001 | 1,100.1 |
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