2000

0.0

2010

2.1

1987

5.8

1998

0.0

1987

7.1

2002

7.6

2013

4.0

1995

3.2

1989

4.6

1990

3.0

1982

4.7

1986

4.2

1990

0.0

2012

2.9

1992

4.7

1990

6.2

1986

5.5

2008

0.0

1995

3.2

1980

0.0