2016

5.8

1987

7.5

1960

7.8

2021

6.2

2016

5.9

2015

7.2

2012

6.9

2014

6.2

2009

5.5

1996

6.7

2011

6.0

2015

5.2

2003

6.1

2014

7.4

2010

6.3

2010

6.7

1978

8.0

2016

6.6

2020

7.1

1982

6.2