1974

6.4

1996

6.2

1982

6.3

2012

5.4

2020

4.8

2016

6.9

1972

6.6

2023

6.5

1985

6.1

2020

6.4

2020

6.4

2015

6.6

2007

3.3

2010

4.9

2015

6.4

1980

5.9

6.6

2023

6.8