1957

5.5

2017

6.6

1980

5.9

2012

5.3

1969

4.7

2019

6.5

1999

4.8

1958

5.6

2006

6.8

2015

6.5

1963

6.9

2019

8.7

2004

6.4

2023

7.1

2020

7.2

2005

6.9

2003

6.8

2011

6.6

2023

6.0

1931

5.8