2006

9.3

1996

7.7

2004

9.5

1990

6.9

2018

8.2

2021

7.6

2018

7.4

2017

6.8

1995

7.0

2020

8.2

2019

7.1

2012

8.6

2020

7.9

2001

8.4

1986

8.3

2010

8.4

2018

7.6

2006

8.2

2002

7.1

1992

6.8