2014

6.8

1953

5.4

1986

7.6

2002

6.0

2008

7.6

2012

5.2

2011

6.5

2003

7.2

2019

8.0

2015

7.8

2018

7.1

2016

5.5

1948

7.0

2003

7.3

2019

6.8

2016

7.9

1980

6.2

2009

6.7

2016

6.8

2008

6.9