1968

6.9

1966

6.3

1966

6.4

1965

6.7

1967

5.7

1954

7.6

1955

6.0

1974

5.6

2021

7.4

2011

6.6

1974

3.8

1962

6.9

1964

7.0

2018

7.5

2010

5.3

2010

5.6

2005

0.0

1949

6.3

2022

0.0

2004

6.4