2002

10.0

2013

8.4

2006

10.0

1979

7.6

2003

7.3

2014

7.4

2012

9.4

1989

9.3

2005

5.8

1978

6.9

2018

6.2

1994

7.3

2015

6.5

2017

6.1

1984

9.2

2020

6.0

2005

8.3

1991

6.3

2012

7.7

1959

6.7