1955

6.8

1985

6.5

1994

4.7

2010

6.3

1994

5.3

2002

6.1

1934

7.5

1990

6.4

1992

7.6

1965

7.7

1946

6.9

1954

6.5

1949

8.0

2022

6.5

1971

7.8

1950

6.7

1960

7.2

1973

7.1

2003

6.4

2010

7.3