2015

7.5

1971

7.0

2008

6.2

2007

6.1

2010

3.9

2009

6.0

1983

5.7

2018

6.7

2020

6.2

1983

6.5

1942

6.5

1992

6.3

1942

4.8

2004

6.7

1976

6.4

2001

5.6

2014

1.5

2007

6.2

1955

5.1

1980

5.2