2011

5.7

2010

5.7

1934

5.4

1911

5.5

1980

4.7

2009

7.2

2012

6.8

1911

3.1

2014

7.4

1989

7.0

1995

6.3

2008

3.0

1896

7.1

1968

6.3

1927

0.0

2014

4.0

1956

1.7

1969

6.4

1964

6.6

1904

5.5