2006

9.0

2011

6.5

2000

6.6

1964

7.0

1988

5.5

2019

8.0

1939

7.6

2007

4.9

2004

7.3

2008

7.2

2006

6.3

2016

7.9

1992

6.9

2010

7.8

1975

7.7

2004

7.3

1997

7.9

2006

6.1

1992

6.8

2015

7.3