1972

7.2

1967

6.8

1984

7.3

2014

6.3

2013

6.2

1903

7.0

2004

5.7

1971

7.5

2009

6.6

1989

6.2

2019

7.1

2012

5.9

2021

9.2

1948

8.0

1952

7.8

2000

6.4

2020

7.0

2005

5.3

1934

7.5

1941

7.1