2012

5.8

2014

5.9

2016

6.4

2012

5.3

2012

7.8

2012

6.5

1989

6.1

1956

7.9

2012

6.3

1976

7.3

2013

5.5

2016

6.1

2011

6.0

2015

7.7

1991

7.6

2016

6.0

1948

7.0

2023

6.6

1969

7.1

2008

6.6