2007

5.6

2007

7.2

1995

5.8

2006

6.8

1983

6.1

2000

4.8

2001

5.3

1979

7.7

1996

3.2

2007

4.7

2003

5.7

2014

6.3

2002

7.1

2008

5.2

1972

7.3

1997

5.2

2009

5.4

1982

6.3

2007

5.2

1983

6.2