1986

5.6

2002

5.5

2000

0.0

1990

3.0

1996

5.7

2007

5.0

2001

7.2

1985

3.0

1990

5.6

1973

6.5

2007

8.2

1987

5.3

1981

6.3

1996

0.0

2005

8.0

2004

5.0

1986

0.0

1984

4.5

1986

0.0

2011

7.8

1984

5.6

2010

5.9

1981

5.0

2001

0.0