1992

7.2

1973

0.0

1986

6.0

1971

7.8

1994

5.8

1991

8.0

1958

6.5

1991

10.0

1982

8.6

2005

8.2

1981

7.6

2003

7.2

1991

4.0

1977

7.2

2005

7.5

1969

6.1

1964

5.0

1999

6.5

2007

7.2

1982

7.0

1983

6.4

1989

8.3

1990

6.0

1994

7.0

1971

6.9

2000

4.0

1981

7.3

2006

5.7

1920

0.0

1963

5.7

1999

8.6

1967

4.6

1956

5.0

1970

6.2