1967

3.9

1970

7.1

1976

6.5

1978

6.0

1972

7.2

1971

7.1

1967

6.9

1975

7.1

1988

6.6

2019

6.2

2021

6.6

2014

4.4

1982

4.2

2006

7.3

1995

5.4

1944

4.9

2001

4.5

2025

6.1

2024

7.1

2024

0.0