2007

5.7

2019

6.6

5.3

1990

7.4

1988

6.2

2011

6.4

2017

5.9

2020

6.7

2011

6.6

1954

6.7

2019

6.5

2012

5.8

2014

6.9

2020

6.5

2017

6.9

1966

6.2

2009

7.8

2008

5.8

1983

7.9

2011

5.6