2003

7.3

2007

7.3

1998

0.0

1979

6.7

2002

4.6

1992

5.8

1989

0.0

1997

7.8

1990

7.9

2004

5.0

1996

6.8

1999

8.1

1996

6.9

2001

5.5

1995

7.1

2012

4.6