1994

7.4

2019

7.7

1955

6.3

2005

5.2

1940

7.8

2010

7.3

2009

7.3

2017

5.6

2008

5.8

1992

6.5

2011

5.7

2006

10.0

1988

6.7

1989

6.9

2024

6.9

1976

6.7

2008

6.2

1984

9.2

1960

6.7

1998

6.0