2013

6.1

2020

5.2

2002

5.5

2012

6.3

2003

7.0

2009

8.5

2015

5.8

2009

6.7

2014

6.8

2013

8.2

2013

6.1

1961

7.7

1896

6.2

1995

5.4

1975

6.4

1978

7.4

2004

6.5

1939

7.6