1923

8.5

2008

10.0

2018

5.9

1931

5.2

2008

5.2

2015

5.6

2021

9.5

2020

7.0

1939

7.1

2006

5.6

2010

7.0

2014

6.0

1989

4.0

2021

10.0

2019

4.0

2011

5.0

1964

6.9

1966

6.1

1954

4.4