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 | 36,0 | -31,95 % |
| 2002 | 52,9 | -0,19 % |
| 2001 | 53,0 | 36,60 % |
| 2000 | 38,8 | -28,01 % |
| 1999 | 53,9 | 56,23 % |
| 1998 | 34,5 | 69,12 % |
| 1997 | 20,4 | -67,04 % |
| 1996 | 61,9 | -48,42 % |
| 1991 | 120,0 |