2020

0.0

1998

6.5

2015

5.4

2011

7.7

2005

6.3

2017

5.6

1971

8.2

1953

7.1

1982

6.3

1977

6.8

2008

4.4

1954

6.4

2017

0.0

1955

7.0

1983

7.1

1990

5.5

1997

5.7

1993

0.0

1980

4.9

1932

7.8