1951

5.8

5.7

2016

6.2

2012

8.4

2013

4.0

1949

6.2

2010

7.1

2011

6.3

1993

5.5

2008

7.8

2004

6.0

2007

4.7

2014

6.5

2024

5.6

1987

5.5