2002

8.4

2000

5.9

2003

6.1

1962

7.6

2012

0.0

1986

7.4

1982

6.1

1976

7.8

1987

6.5

1992

6.6

2006

7.4

2006

6.2

1999

7.4

1957

7.8

2006

7.8

1981

6.4

1943

8.2

1945

8.0

2005

7.1

1973

4.5