1988

4.2

1973

0.0

1992

6.3

2003

6.0

1989

5.9

2004

6.4

2007

7.1

2007

7.0

1979

7.3

2015

6.2

1970

5.6

0.0

1921

8.0

2021

7.2

2005

7.2

2006

7.1

2005

6.6

1998

5.8

2009

5.8

1991

5.9