2014

6.1

2012

5.3

2023

6.3

2023

9.2

2011

6.6

6.1

2001

4.9

2003

6.2

1963

6.9

1964

7.4

1911

6.6

1966

6.1

2020

7.0

1981

5.4

2018

6.3

2008

7.7

2016

6.7

2020

5.5