1999

7.2

2016

9.7

2018

6.0

2010

7.1

1931

5.8

2023

5.2

2007

6.5

2022

8.3

2021

7.7

2020

7.3

2017

6.0

2008

7.5

2013

6.4

1982

5.9

2021

5.0

2012

8.2

1979

5.5

2017

6.0