1969

5.1

2017

6.4

2001

6.3

1968

6.9

2004

6.0

2019

6.1

2009

5.4

2007

8.2

1984

7.6

2006

4.6

2016

6.5

1896

4.8

1993

6.1

2017

8.2

1991

7.4

2013

5.7

2018

6.8

2003

6.0

2019

6.2