1985

6.3

1993

8.3

1999

7.6

1997

7.5

1995

5.0

2006

5.1

1991

0.0

1984

7.0

1991

6.8

1996

7.0

1993

0.0

1969

7.4

1981

0.0

2006

8.1

1982

0.0

1969

0.0

2003

6.6

1985

0.0

1988

5.7

1980

0.0