2002

4.9

2000

7.9

1982

4.7

2015

7.7

2015

7.1

1992

5.9

2009

8.0

2001

6.5

1996

7.8

2001

8.0

1995

6.5

1998

7.1

2003

0.0

2004

6.9

1990

6.9