Bar chart comparing notification rates (per 100,000) for 5 year age categories for two periods: 2008-2010 and 2011-2012. In 2008-2010, notification rates were comparatively low, but highest in the 0-4 (72 per 100,000) and 5-9 (74 per 100,000) year old age groups. In contrast, in 2011-2012 notification rates were highest in 5-9 year olds (397 per 100,000), followed by 10-14 year olds (334 per 100,000) then 0-4 year olds (296 per 100,000), with notification rates disproportionately higher in children 14 years and younger.