2007

9.0

2020

5.8

2003

6.6

2008

6.8

2006

6.9

1980

6.2

1978

6.8

1993

6.5

2017

7.9

2010

7.1

2018

6.2

1981

6.7

1992

8.4

2018

7.6

2021

7.7

1920

7.3

2024

6.9

2023

6.0