2001

6.2

1986

6.2

1949

6.2

1933

6.2

2017

6.6

2006

6.8

1971

6.0

1980

6.6

2017

6.4

2015

5.3

1980

5.9

2001

4.8

2020

6.4

1988

5.7

1966

6.1

1975

6.3

1996

6.5

2020

6.7

2016

5.6

2005

6.9