2010

6.5

1962

6.0

1955

6.7

2011

6.3

1981

5.7

1997

6.6

2008

5.5

1964

5.0

2006

6.3

1983

3.7

2007

6.8

2019

8.0

2013

0.0

1992

6.4

1935

5.0

2015

4.4

1997

0.0

2014

5.1

1972

6.3

1974

6.6