2011

6.6

2005

5.2

2017

6.9

2020

6.7

1965

6.8

2015

5.1

2021

7.4

1926

5.6

1991

6.5

2016

5.6

2020

6.5

1993

6.4

1966

6.2

2008

5.8

2019

7.0

2015

6.7

1990

6.5

2006

6.8

2016

6.8

1998

6.4