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 | 376.3 | -0.15% |
| 2011 | 376.9 | -5.50% |
| 2010 | 398.8 | 10.14% |
| 2009 | 362.1 | 37.73% |
| 2008 | 262.9 | 37.36% |
| 2007 | 191.4 | 14.95% |
| 2006 | 166.5 | -13.69% |
| 2005 | 192.9 | 26.00% |
| 2004 | 153.1 | 62.18% |
| 2003 | 94.4 | -38.58% |
| 2002 | 153.7 | 68.90% |
| 2001 | 91.0 |
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