2011

9.5

1989

9.3

1949

6.2

2006

6.8

2002

5.8

1987

7.1

2005

6.9

2017

6.6

2022

6.5

1940

6.3

2000

5.1

1996

6.5

2014

5.5

2015

6.5

2016

6.5

2021

6.0

2023

6.7

2017

7.0