2008

5.5

1972

0.0

1973

6.2

2006

6.6

2002

6.3

1994

4.0

2006

6.6

1985

7.1

1992

6.7

2004

1.4

1988

6.2

1962

7.0

1963

7.1

1959

7.9

1967

6.6

2003

8.3

1974

6.4

1977

6.8

1981

6.5

1987

6.5