18-15ƽÿһרνʦѧ(19492008),,,,,,,
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,ͨߵѧУ,еרҵѧУ,ְҵѧ,ͨѧ,Сѧ,׶԰,
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1949,,14.5,,23.3,41.2,32.7,
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1950,,11.9,,25.6,38.6,30.0,
1951,,11.6,,23.4,41.0,40.4,
1952,,12.1,,24.3,39.7,26.8,
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1953,,14.8,,23.3,37.2,23.5,
1954,,13.1,,23.3,35.7,16.2,
1955,,13.3,,25.0,36.1,18.4,
1956,,13.0,,26.6,37.5,30.6,
1957,,10.9,,26.1,36.2,27.2
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1958,,15.5,,24.4,39.1,22.2
1959,,13.8,,23.2,34.9,30.0
1960,,12.2,,23.1,33.9,34.2
1961,,10.4,,20.6,31.7,27.9
1962,,9.5,,19.5,31.2,24.7
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1963,,8.6,,19.4,31.9,23.4
1964,,7.9,,20.2,31.1,23.5
1965,,8.8,,20.6,32.1,21.5
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1966,,7.9,,17.5,31.4,17.1
1967,,6.1,,20.8,33.3,16.5
1968,,3.1,,23.2,31.2,16.9
1969,,0.1,,22.8,30.9,16.4
1970,,1.6,,21.1,30.7,14.3
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1971,,,,21.4,26.5,
1972,,6.8,,23.1,25.5,
1973,,8.0,,21.7,24.6,19.9
1974,,9.3,,25.0,22.9,20.9
1975,,7.5,,24.5,22.1,18.5
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1976,,4.7,,24.1,20.6,18.2
1977,,6.1,,22.5,21.9,16.2
1978,,6.1,,19.9,20.7,28.2
1979,,6.2,,16.1,21.3,27.0
1980,,7.1,,14.8,21.7,28.3
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1981,,4.7,,13.4,19.7,26.4
1982,,5.5,,12.3,19.5,27.4
1983,,6.4,,11.5,19.6,37.3
1984,,6.8,,13.2,18.2,31.1
1985,,7.8,,13.9,17.4,30.0
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1986,,8.2,,14.1,17.3,27.0
1987,,8.5,,12.8,16.8,25.2
1988,,9.0,,11.4,17.6,24.1
1989,,8.9,10.6,11.0,19.1,20.0
1990,,8.7,9.5,10.1,18.6,20.7
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1991,,8.5,8.9,10.5,18.0,21.4
1992,,8.8,9.6,11.3,17.4,21.9
1993,,9.8,10.2,12.1,17.4,20.6
1994,,10.5,11.6,13.1,16.9,20.3
1995,,11.7,14.2,13.6,16.5,19.6
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1996,,13.3,15.4,13.7,16.1,18.4
1997,,16.2,15.3,13.2,15.7,17.4
1998,,18.6,14.9,12.8,14.9,17.7
1999,12.0,21.3,13.9,13.2,13.7,17.9
2000,14.0,25.7,12.8,14.1,12.8,18.2
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2001,17.0,28.7,12.7,14.3,12.1,17.4
2002,19.0,28.4,13.3,14.2,11.2,17.6
2003,19.0,30.9,12.7,13.7,11.0,15.3
2004,17.1,30.0,12.4,12.9,10.6,14.5
2005,17.0,32.4,12.9,11.8,10.3,13.7
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2006,17.0,32.6,13.2,10.8,9.8,12.6
2007,15.4,31.9,12.8,11.5,13.8,12.6
2008,17.1,32.9,13.1,10.9,13.5,12.5
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