What is the range of the data set? Chart showing vertical columns of dots in each year.
The horizontal bar at bottom shows years from 1997 to 2009. The number of dots per year is as follows. 1997, zero. 1998, three. 1999, five. 2000, seven. 2001, six. 2002, two. 2003, zero. 2004, four. 2005, three. 2006, zero. 2007, zero. 2008, two. 2009, zero.
