1998

7.3

1975

10.0

1982

6.5

1965

7.7

1950

7.7

1971

5.2

2006

6.9

1975

0.0

1990

5.1

1970

6.6

1978

6.0

2003

5.4

1934

6.4

1961

5.8

1959

7.1

1992

6.2

1975

7.5

2000

8.4

1934

6.4

1968

5.8