2016

6.0

2014

5.8

2021

7.7

2013

8.1

2020

7.4

2023

8.5

1963

5.9

1984

7.2

2006

5.1

7.8

2010

7.0

1991

7.3

1985

5.9

2021

9.2

2014

6.8

1997

7.0

1964

7.4

2017

6.9

2019

7.6