1999

6.5

2011

0.0

1982

7.6

1999

8.2

1988

5.8

1981

7.6

2000

5.0

2003

5.3

1997

5.7

2002

7.9

1993

7.2

1991

4.5

1999

6.0

1998

7.3

1988

4.7

1986

5.9

2011

5.7

1996

7.1

2006

7.0

1993

5.0