1995

7.3

1969

6.3

2004

5.9

2008

5.6

2021

6.8

1960

7.6

1975

8.0

2001

7.3

1943

5.7

1967

6.2

1943

6.5

1999

7.4

2019

6.1

1973

7.6

1971

4.8

1975

5.2

2007

6.6

1987

5.8

2011

6.8

1971

5.8