2002

4.5

2013

6.4

2019

6.6

1991

6.3

2009

5.9

1890

4.9

1994

6.8

1963

5.9

2004

7.3

2008

7.6

2010

9.2

1959

6.8

1987

6.1

2009

7.2

2016

6.4

1997

7.4

2017

5.8

1997

6.9

1988

5.9

2017

7.3