1963

6.9

1955

7.2

2016

6.7

2013

6.1

1966

7.6

2019

6.5

1980

5.9

1940

6.3

2004

6.8

1985

5.8

2019

8.7

2010

5.0

2018

6.1

2017

5.4

2024

6.5

2011

5.2

2005

5.2

2025

6.6

2017

7.3

2003

6.8