2012

6.7

2012

7.5

1979

5.9

2009

6.8

2019

8.1

2004

7.6

1986

7.3

2001

6.2

1985

7.0

1992

6.9

2018

6.1

2017

7.9

1979

6.2

2016

8.2

2013

6.5

1971

7.7