2004

5.9

1984

5.0

1989

6.0

1990

7.4

1991

4.8

1990

8.5

2000

0.0

1980

7.2

1993

7.1

1994

7.8

1990

5.1

1951

8.6

1985

5.8

2006

7.0

1998

6.0

2005

5.0

1982

9.0

1996

6.3

1989

8.3

2000

7.1

1995

5.5

1987

8.0

2005

6.5