2014

5.8

2019

6.4

2017

7.5

1969

4.5

1978

5.8

1983

5.0

2018

4.7

2010

4.9

1982

5.4

1988

5.3

1982

5.0

1971

6.5

1970

5.8

1974

6.5

1964

6.3

1959

3.5

2008

4.1

2019

4.8

1960

5.0

1983

5.9