2020

6.4

2014

6.2

1985

6.1

1949

6.2

2003

5.7

2002

4.5

1972

6.6

1993

5.4

2016

6.2

2003

6.5

1920

7.3

2008

6.7

2007

6.0

2015

6.6

2020

6.7

2007

5.2

2000

6.7

1985

6.9

2001

6.7

2013

6.5