1982

3.2

2000

4.8

1942

6.6

1942

7.3

1974

7.3

1994

6.8

1987

6.9

1997

6.1

2002

5.5

1967

7.3

2006

7.0

1967

7.6

2003

7.2

2002

7.1

1964

7.2

2017

8.3

1955

7.3

2016

6.5

2019

10.0

1976

4.5