1935

5.0

1998

5.4

1997

6.5

2014

5.9

1991

4.9

1973

3.4

2000

4.3

1990

5.2

2017

5.5

2010

5.6

2015

4.5

2018

4.0

2006

4.2

2025

0.0

2018

4.0

1998

5.4

1936

5.0

2009

6.0

2002

4.9

1982

5.3