1994

6.7

1992

6.0

1985

6.7

1989

6.8

1982

6.0

2022

6.0

1986

6.5

1961

6.8

1970

5.6

1962

6.6

1972

5.6

1962

6.2

1941

6.5

1964

6.2

1942

6.9

1978

5.4

2006

5.2

1990

5.7

1987

0.0

1957

7.5