1969

0.0

1984

7.0

1985

0.0

1972

6.9

1972

6.1

1975

6.7

2006

5.2

1988

6.3

1994

5.8

2004

5.3

1996

5.7

1989

6.2

1971

7.1

2003

6.0

2008

6.5

1992

7.0

1989

6.6

1933

7.6

2022

7.3

1974

7.5