1989

5.8

1996

5.8

1996

0.0

1995

0.0

1983

2.0

1977

4.6

2013

0.0

1999

0.0

1997

6.8

1999

10.0

2012

6.9

2013

5.9

1988

6.1

2001

6.4

1985

7.2

1991

5.0

1992

6.5