1996

0.0

1980

6.1

1986

6.4

1993

0.0

2000

5.1

1981

0.0

1967

6.2

2002

5.9

1994

3.5

1986

7.8

2011

4.3

1988

5.0

1972

6.5

1994

0.0

1990

2.0

1987

5.8

1977

4.7

2015

6.0

1986

3.3

1981

5.6

1984

0.0