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 | 1,387.9 | 32.63% |
| 2011 | 1,046.4 | -15.54% |
| 2010 | 1,239.0 | -12.47% |
| 2009 | 1,415.5 | 38.63% |
| 2008 | 1,021.1 | -11.32% |
| 2007 | 1,151.4 | 20.74% |
| 2006 | 953.6 | 12.56% |
| 2005 | 847.2 | -1.21% |
| 2004 | 857.6 | 11.96% |
| 2003 | 766.0 | 6.98% |
| 2002 | 716.0 | -5.29% |
| 2001 | 756.0 |
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