2005

6.5

2005

6.8

1997

7.0

2007

5.3

1989

4.0

2017

0.0

1926

0.0

2001

6.1

2013

5.2

1996

7.6

1982

7.2

2006

6.5

2003

5.9

1985

6.2

1994

3.6

1989

7.1

2006

5.6

1979

2.0

1993

7.7

1998

6.9