2014

5.3

2013

6.1

1969

5.1

1968

6.9

1966

6.2

2015

6.5

1926

5.6

2023

6.8

2019

5.4

2003

9.2

2014

7.4

1975

6.8

2017

6.6

2023

7.9

2010

7.0

2009

6.0

1972

6.6

2016

6.1

6.5