1964

6.6

1967

7.8

1968

7.0

2006

6.7

2007

6.3

2024

5.0

2001

7.0

1974

0.0

2018

3.0

1988

6.8

1963

6.0

2010

6.4

1953

6.0

1966

8.0

1986

7.5

2021

7.8

1969

0.0

1987

0.0

2016

4.9

1985

0.0