1960

5.0

1977

6.6

1993

5.5

2021

6.2

2019

8.7

2015

6.4

2019

7.9

6.7

1989

5.8

2022

4.5

2013

4.0

5.0

2022

6.4

2003

7.2

2014

4.5

1970

6.2

2011

5.5

2012

6.0

2010

6.1

2018

7.0