2008

7.7

1966

6.1

2006

7.2

2018

6.5

2013

7.6

1980

6.4

1976

6.2

2011

5.7

1920

6.7

2007

8.0

1990

5.2

2021

6.3

1985

6.1

2023

6.5

1994

6.6

2017

7.4

6.6

1993

6.5

2011

6.9