Line graph demonstrates the population screening coverage of children aged 5-9 years (%) by year (2007-2011) and jurisdiction (NT, SA and WA). * WA has a gradually increasing trend from 33% in 2007 to 45% in 2010 with a slight decrease to 38% in 2011 * NT has a gradually increasing trend of 25% in 2007 to 48% in 2011 * SA illustrated no particular trend over time, however a sharp increase occurred from 4% in 2009 to 65% in 2011