2008

8.9

2001

7.6

2009

8.3

2013

7.5

2019

8.7

2022

7.3

1994

8.0

2023

6.6

1990

6.9

2017

7.2

1998

7.2

2016

7.8

2002

8.6

2012

8.3

2009

7.9

2010

8.0

2004

5.8

2015

7.3

1977

7.7

1988

8.0