2002

8.4

1966

7.3

1988

6.9

1997

6.8

2009

6.0

2007

7.9

2018

8.1

2015

8.3

2003

8.6

2004

5.2

1977

6.5

2017

7.5

1994

7.8

1995

7.8

2013

6.9

2022

6.4

1993

6.9

2010

9.0

2020

7.4

1996

9.7