1985

1.9

2006

5.7

2005

8.8

1985

6.5

1981

7.9

2000

6.2

2006

7.4

2014

0.0

1993

0.0

2018

6.5

1984

7.4

1987

7.9

2007

6.4

1988

5.7

2001

7.4

1991

7.2

1988

6.9

1990

4.5

1983

5.2

2009

0.0