1988

5.6

1976

7.6

2008

5.1

2005

6.3

1931

3.8

2001

6.8

2014

6.3

2018

0.0

2016

6.3

1989

5.7

2004

5.9

1939

7.1

1999

5.8

1994

6.2

2012

7.1

1941

0.0

2019

0.0

1981

6.8

2004

0.0

2003

5.7