1985

8.9

2018

7.0

2023

5.6

2009

6.0

1976

6.0

2015

3.8

2017

10.0

2008

4.1

1975

4.0

2019

2.5

2014

6.3

1939

5.7

1960

6.5

1988

4.5

2008

10.0

2025

5.0