1931

5.8

2017

4.9

2009

6.6

1964

7.0

2022

7.3

2019

7.5

2015

5.1

2019

6.1

2013

6.1

2021

7.8

2018

6.7

1977

6.3

1999

5.9

2017

7.3

2006

9.8

2023

6.3

2020

6.7

1996

5.8

1953

7.2

1968

6.4