1994

4.4

1980

0.0

2009

8.0

1984

6.3

2009

4.0

1994

7.8

1993

7.7

2008

7.1

1985

6.6

1995

7.6

1983

5.2

1994

5.3

1980

5.9

1984

6.2

1991

4.9

1977

7.8

2006

7.3

1990

6.9

2002

7.3