2006

4.6

1983

6.2

1986

6.0

1963

6.9

1994

6.8

1975

5.8

1967

7.5

1947

7.0

2009

10.0

2021

6.8

1975

0.0

1982

2.5

2000

7.3

2002

6.4

1999

5.6

2003

6.6

1967

7.7

1996

5.8

1976

6.9

1994

6.6