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.
| Fecha | Valor | Cambiar , % |
|---|---|---|
| 2003 | 24,0 | 3,00 % |
| 2002 | 23,3 | 43,83 % |
| 2001 | 16,2 | -10,00 % |
| 2000 | 18,0 | -25,00 % |
| 1999 | 24,0 | 12,68 % |
| 1998 | 21,3 | 32,30 % |
| 1997 | 16,1 | -31,20 % |
| 1996 | 23,4 | -37,10 % |
| 1995 | 37,2 | -44,64 % |
| 1994 | 67,2 | 273,33 % |
| 1992 | 18,0 | -25,00 % |
| 1991 | 24,0 |