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 | 82.1 | 0.07% |
| 2011 | 82.0 | 0.53% |
| 2010 | 81.6 | -58.56% |
| 2009 | 196.9 | 71.22% |
| 2008 | 115.0 | -4.41% |
| 2007 | 120.3 | 49.44% |
| 2006 | 80.5 | -2.42% |
| 2005 | 82.5 | -41.28% |
| 2004 | 140.5 | 21.75% |
| 2003 | 115.4 | -1.28% |
| 2002 | 116.9 | 1.74% |
| 2001 | 114.9 |
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