2001

7.8

2004

7.3

1995

0.0

1987

8.0

2012

5.2

1959

6.9

2000

6.4

1991

0.0

1996

0.0

1992

0.0

1981

0.0

1953

6.9

1989

5.7

1974

7.0

1965

5.8

1979

6.6

1969

4.4

1977

7.0

1961

6.4

1997

6.2