1972

8.6

2002

8.0

2009

7.3

1997

6.5

1974

0.0

1999

7.0

1985

6.7

1980

6.8

1984

8.1

1969

7.0

1958

6.7

1974

7.5

2016

6.9

1995

6.2

1985

7.5

1960

5.0

1994

6.5

1989

8.2

1973

6.9

2003

0.0