2009

6.1

1949

6.2

1987

5.3

2020

6.5

2017

6.7

2011

6.6

2017

6.5

2012

6.3

1966

6.2

2012

5.8

2013

7.6

2016

6.1

1959

6.1

2012

9.3

1960

6.1

1988

5.4

2017

8.0

1961

7.2

1996

9.4

1983

5.7