2006

6.9

2002

7.5

2000

7.4

2008

6.6

1981

5.0

1977

5.2

2021

5.5

0.0

2003

6.2

1992

6.5

1951

0.0

1976

6.6

1966

6.7

1968

6.3

2009

6.1

2010

6.3

2004

7.3

2004

7.5

2008

7.3

1994

5.9