2020

7.0

1977

5.4

1976

4.8

2010

7.5

2010

5.5

1995

7.7

2017

7.9

2013

6.6

2019

7.4

1994

7.1

1987

6.1

1968

7.4

1964

6.7

1971

7.4

2009

4.6

2001

6.4

1999

6.8

2018

6.4

2017

6.5

2020

5.8