2006

9.3

2002

8.2

2013

8.6

2008

6.7

1986

7.7

2021

7.0

1996

7.1

2022

7.2

2010

7.0

1998

8.6

1991

7.9

2019

7.3

2013

8.6

2019

9.3

1977

8.1

2011

7.7

2020

7.8

2018

7.0

2000

6.0

2016

5.5