2004

6.6

2005

6.6

2012

7.0

1987

7.5

1988

6.2

2001

8.4

2009

6.0

2019

8.1

2008

6.3

1993

7.4

2018

8.4

2014

6.8

2021

7.9

2001

6.9

1999

8.4

1995

7.9

1988

7.8

1998

8.2

2007

6.6

2002

4.6