1955

7.5

1983

7.2

1979

7.0

1986

7.8

1971

7.6

2007

6.6

2007

7.9

1985

7.7

1983

4.0

0.0

1998

7.3

1933

6.9

2016

7.2

1942

7.0

2017

5.8

2007

0.0

2015

6.6

2021

8.0

2016

5.4

2000

7.5