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1950 45.2 44.9 63.8
1951 46.3 46.3 59.3 76.2
1952 47.5 49.6 56.7 81
1953 41.7 49 60.8 79.8
1954 40 48.5 60.4 80.3
1955 42 47.6 53.5 73.9
1956 42.6 51.7 52.3 73.2
1957 43.3 58.4 54 76.9
1958 40.9 57.6 53.5 77.4
1959 39.8 58.1 55.1 79
1960 38.6 61.3 58.9 83.2
1961 35.7 64 62.5 85.6
1962 33.5 63.9 59.8 86.6
1963 30.7 63.4 62.1 86.2 43.3 63.4
1964 28.7 63.9 64.5 85.6 46.4 55.3

1996 1.4 24.3 65.7 65.9 66.7 62.8
1997 1.4 23.5 67.9 66.6 67.9 62.9
1998 1.3 22.7 65.7 65.6 67.2 60.9
1999 1.1 20.2 59.1 60.1 64.9 58.4
2000? 1 18.6 56 55.8 62.9 55.9
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lt???gt lt??gt
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???1????????Critical Value?2.57????
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???1????????Critical Value?2.57????
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lt??gt lt??gt
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???1????????Critical Value?2.57????
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lt??gt lt???(????)gt
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???1????????Critical Value?2.57????
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???1????????Critical Value?2.57????
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