1975-999棋牌老版本

作者：

来源：

日期：2003-01-01

million acres 百万英亩 (million hectares 百万公顷)

1975
1976
1977
1978
1979
1980
1981
1982
1983
1984

54.6
50.3
59.0
64.7
71.4
69.5
67.5
70.9
63.8
67.8

(22.1)
(20.4)
(23.9)
(26.2)
(28.9)
(28.1)
(27.3)
(28.7)
(25.8)
(27.4)

1985
1986
1987
1988
1989
1990
1991
1992
1993
1994

63.1
60.4
58.2
58.8
60.8
57.8
59.2
59.2
60.1
61.6

(25.5)
(24.5)
(23.6)
(23.8)
(24.6)
(23.4)
(24.0)
(24.0)
(24.3)
(24.9)

1995
1996
1997
1998
1999
2000

62.5
64.2
70.0
72.0
73.7
74.5

(25.3)
(26.0)
(28.3)
(29.1)
(29.8)
(30.2)