1933

6.6

1939

6.0

1994

6.7

1953

5.5

1969

5.7

2015

8.2

2020

7.2

2003

6.0

1951

6.0

2017

6.8

2005

6.0

2006

5.0

1998

6.4

2020

6.7

2016

6.9

2018

7.0

2014

7.0

2019

5.8

1939

7.0

1978

5.8