1951

5.8

2020

7.5

2002

7.1

1968

7.1

2005

6.3

2004

6.3

1995

7.2

1994

7.4

2001

6.7

2004

6.7

2008

2.5

2008

4.0

2008

6.7

2006

6.0

2019

6.2

2014

6.2

1988

7.0

2007

6.5

1932

7.5

1961

7.7