1961

5.5

1991

3.1

2004

5.7

2023

5.6

2014

8.5

2015

9.0

1989

6.0

2015

10.0

2018

6.6

2009

7.8

2025

6.2

1939

6.1

1909

5.7

1958

7.1

1933

9.0

2012

6.0