2018

6.9

2012

7.8

2013

7.4

2015

5.9

1972

6.2

1992

6.4

2018

7.1

2016

7.0

2014

6.1

2013

7.2

2011

6.3

1963

7.1

2021

7.4

2012

7.8

2014

7.6

1970

6.4

2016

6.5

2023

8.1

1968

6.9

2018

5.6