1931

5.8

2021

6.1

2009

7.6

1988

5.3

2010

5.5

2014

6.0

2024

6.9

2021

6.4

2021

7.5

1971

6.8

1984

7.6

1972

6.2

1995

6.7

2020

7.2

2006

6.9

2023

7.6

2013

9.2

2009

6.6

2017

8.5