1973

4.3

5.0

2012

6.3

6.4

2017

5.9

2012

8.0

2021

6.2

2022

4.5

1982

5.9

1976

5.9

1975

4.5

2015

6.4

2017

6.0

2014

6.2

1931

5.8

2005

8.4

2015

7.9

2011

6.8