2013

8.0

2010

8.8

1994

8.4

1997

7.4

2013

8.7

1998

7.0

2006

8.6

2001

8.1

2008

8.9

1990

6.9

1990

7.0

1987

7.7

1999

8.2

2004

8.4

2013

8.5

2015

8.7

2021

8.6

1991

7.6

2012

8.6

1989

8.2