1969

7.9

2018

6.7

1986

6.6

1956

7.1

1969

6.7

1967

6.7

2020

6.7

2017

6.2

2015

6.7

2006

7.1

1995

5.4

2016

4.9

1967

7.3

1976

7.6

1977

7.4

2014

7.7

2005

6.9

1980

6.3

2019

7.6

2016

5.6