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 | 56.6 | -15.98% |
| 2011 | 67.3 | 5.39% |
| 2010 | 63.9 | 5.85% |
| 2009 | 60.4 | 23.67% |
| 2008 | 48.8 | 13.49% |
| 2007 | 43.0 | 18.78% |
| 2006 | 36.2 | 448.48% |
| 2005 | 6.6 | 0.00% |
| 2004 | 6.6 | 0.00% |
| 2003 | 6.6 | 0.00% |
| 2002 | 6.6 | 0.00% |
| 2001 | 6.6 |
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