2004

8.6

2006

7.9

2001

6.6

5.8

1993

6.6

2016

7.2

2004

8.3

2019

6.3

1984

7.4

1996

5.3

2017

5.7

2020

7.6

2003

8.2

2008

8.0

1998

7.2

1992

5.9

1997

6.4

2022

6.0

1989

8.3

2018

7.0