1953

7.2

2021

6.1

2015

6.4

1998

6.5

1980

5.9

1989

5.8

2019

6.5

2021

7.3

2013

6.7

1993

6.1

1968

6.9

1963

6.9

2022

7.0

2017

6.6

1971

6.0

1988

6.5

2017

6.9

2020

6.5

2009

7.9

2007

7.4