1959

6.1

2019

6.6

1935

6.5

2020

6.7

2016

7.2

1982

6.7

2017

6.6

2021

6.2

1971

6.0

2011

6.6

1966

6.2

2014

6.7

2019

7.0

1975

6.4

1988

6.3

2007

5.4

1999

6.8

2021

6.6

1993

6.5

2018

5.4