2012

6.4

2015

6.4

2023

6.8

2007

5.7

2018

6.5

6.6

2015

6.6

2017

5.9

5.4

2024

6.0

1985

6.8

1975

7.0

2018

6.3

2011

6.4

2020

6.4

2011

5.7

1972

6.3

1966

6.1

2015

6.6

7.0