2003

6.1

1999

6.2

2002

5.8

2001

6.0

1998

6.1

1993

6.5

2020

5.5

2001

6.2

2017

10.0

1992

7.3

2018

6.6

1999

5.9

1997

6.1

2005

5.6

2017

7.1

2000

6.1

2004

6.2

2006

5.8

2006

5.3

2002

6.0