2016

6.9

1980

6.1

1970

7.3

2019

8.4

2003

7.1

1988

6.2

2009

5.7

2000

7.4

1985

6.7

2017

7.6

1993

7.3

1937

7.1

2011

6.1

1904

7.2

2007

5.8

1980

6.0

2020

6.0

1993

6.1

1949

8.0

1956

6.1