1973

6.0

1971

7.0

1974

1.0

1971

7.4

2011

4.3

1963

8.0

1967

6.4

2007

6.2

1966

0.0

1977

7.5

1998

6.0

1999

5.6

1986

3.0

1965

5.9

1977

5.6

1998

6.7

1980

5.7

1981

0.0

1987

6.5

1962

7.4

2006

6.7