2000

7.7

2001

5.7

1983

6.8

1992

6.8

2003

6.2

1971

0.0

1979

0.0

1980

4.7

1989

7.5

1994

0.0

1986

5.2

2000

6.9

1985

6.5

1973

5.3

1997

6.8

1958

7.0

1962

5.8

1987

6.0

1967

6.0

2013

8.1

1978

5.7