2008

7.2

2003

8.0

2014

6.9

2009

7.7

1997

7.3

2016

7.0

2021

8.3

1999

6.9

2014

5.7

2004

5.8

2014

7.1

1965

7.4

2000

6.9

2018

7.5

1999

6.9

2006

7.4

2017

7.6

1980

7.7

1989

5.9

1978

7.0