1980

7.3

2004

7.3

2005

6.5

2004

5.4

2003

5.5

1965

6.3

1943

6.3

1951

5.7

2009

5.1

1986

4.8

1959

5.5

1969

3.9

1971

3.6

1975

3.4

1975

5.1

2017

4.7

1973

0.0

1933

5.0

2016

3.6

2022

3.3