2011

6.5

2001

6.8

1972

6.6

2009

4.5

2010

8.3

2001

7.5

2013

6.9

1975

7.0

2014

6.9

2009

7.3

2020

6.4

1953

7.2

2005

4.2

2008

7.1

2018

6.5

2007

5.5

2020

3.0

2016

9.6

1999

5.0

2023

6.8