2000

6.3

2010

9.1

1984

6.2

2012

6.1

2003

8.8

2022

4.5

1980

6.6

2013

5.7

2007

6.5

2021

6.2

1988

6.5

1997

6.0

1994

6.5

2005

6.1

2008

5.9

1890

4.5

2001

6.4

1985

7.2

2009

8.5