2007

0.0

2013

4.9

1999

3.4

1980

5.1

1980

4.8

0.0

1979

6.0

2006

5.2

1988

5.4

1999

4.2

2007

5.8

1973

6.4

1996

4.6

1997

4.7

1999

5.2

2002

5.3

2005

3.6

1970

4.2

2005

5.9

1992

6.0