1895

5.4

1976

7.8

1994

7.6

2010

5.0

2009

5.6

2007

7.9

1966

6.1

2006

6.6

1990

6.6

1985

5.8

2012

9.3

1994

8.9

2017

5.9

2020

5.6

2009

6.2

1991

8.3

1938

6.5