2000

7.2

2000

6.3

1994

6.5

2021

9.2

1964

7.4

1998

6.4

2005

6.6

1952

8.3

1980

8.4

2010

6.8

1984

6.6

2017

6.0

2016

5.9

2013

6.8

2008

6.2

2009

6.5

1969

7.9

1993

6.7

1980

6.6