2011

6.4

1975

7.0

2020

6.4

2018

6.5

1985

6.8

2015

6.6

2023

6.4

2015

6.4

2018

6.0

2020

6.4

2012

5.3

2010

7.9

2023

6.3

6.6

2008

6.7

1972

6.3

2023

6.8

1989

9.2

1953

4.8

2018

6.1