1957

7.9

1967

7.8

1985

7.7

1925

7.3

1956

7.6

2005

8.3

1994

7.5

1965

7.4

2015

7.1

1989

6.4

1986

7.8

1994

7.9

1997

7.4

1973

7.0

2019

8.7

1966

7.2

2014

8.2

1996

6.7

1955

7.8

1944

8.1