| CO2 Miktarı |
|
|||||||
|
1990
|
1991
|
1992
|
1993
|
1994
|
1995
|
1996
|
1997
|
|
|
43.8
|
44.1
|
44.5
|
44.8
|
45.1
|
45.5
|
45.6
|
49.7
|
|