1980

7.9

2022

6.7

1991

8.3

1995

8.4

2000

8.2

2015

7.8

2023

8.1

2018

8.2

2012

8.2

2012

7.4

2001

7.9

2016

7.6

2009

7.6

2014

8.4

1984

7.7

1994

8.7

1972

8.7

2010

8.4

2012

6.6

2006

8.2