2013

6.1

2006

6.9

2009

7.3

1931

5.8

2025

7.8

1999

6.6

2000

9.4

2015

4.9

2007

8.1

2020

7.4

2016

7.0

1987

5.5

1998

8.8

1977

6.7

2006

6.4

2010

6.2

1966

5.5

2025

6.9

2014

5.6