2005

2.3

2001

6.3

2007

1.0

1999

2.5

1998

6.6

2009

0.0

2013

5.1

2001

0.0

1990

5.8

1993

6.0

2013

4.0

1998

5.7

1997

6.0

1983

0.0

1989

6.0

2002

0.0

2004

4.7

1983

6.8

2004

7.3

1982

6.5