1964

7.6

2001

7.9

1999

8.5

1975

8.4

1995

8.0

1963

7.1

1984

6.9

1991

8.3

1985

7.0

1975

0.0

2019

8.0

1959

2.3

1966

0.0

1978

0.0

2014

6.8

1974

6.5

2007

7.9

1993

6.2

2008

6.7

2003

7.0