2015

5.1

1990

6.4

2020

6.8

2008

7.8

2014

6.5

2017

5.9

1995

7.5

2022

6.4

2001

7.2

1968

6.9

2016

6.7

1971

7.1

1981

6.6

2018

6.3

1984

6.1

2019

8.1

1974

5.7

2018

6.4

2019

7.3

2006

7.4