  
<prompt> Trends in use of ITNs by children under five
  
 [["", 2007, 2010], ["Highland Epidemic", 38, 44], ["Endemic", 46, 50], ["Seasonal", 34, 39], ["Low Risk", 30, 32]] 
 <response> Use of ITNs has increased since 2007 in all epidemiological zones (Figure 4.1).  