2006

6.7

2008

6.8

1990

6.0

1969

6.5

2003

7.3

1956

7.6

1981

6.7

1950

7.1

1947

7.7

1997

4.5

1985

5.3

1967

7.4

1974

7.7

1968

6.0

1984

6.5

1985

6.7

2024

7.1

2024

7.0

1948

7.0

1971

6.8