1974

0.0

1975

6.3

1976

6.5

2017

6.0

1971

7.1

1982

0.0

2011

2.7

1985

4.0

2016

6.1

2020

7.0

1987

9.5

1981

9.5

1981

10.0

2012

3.8

1996

0.0