1962

6.0

2010

6.5

1955

6.7

2011

6.3

1997

6.6

1981

5.7

2019

8.0

2006

6.3

2008

5.5

1964

5.0

2014

5.1

2007

6.8

2013

0.0

1992

6.5

1935

5.5

2015

4.4

1997

0.0

1983

3.7

1984

5.3