1990

7.2

1953

7.3

2002

6.6

1999

6.8

2023

6.3

1975

6.3

2021

6.1

1991

5.7

2011

6.8

2011

6.7

2012

5.9

1980

6.9

2019

6.4

2022

6.0

1982

6.7

2014

6.3

2017

6.1

2019

6.7

2015

6.4

1966

6.2