Figure 6 is a line graph showing trends in vaccination coverage estimates for hepatitis A and pneumococcal polysaccharide (23vPPV) vaccines for Indigenous children in Australia from 2007 – 2011. · 23vPPV coverage has gradually increased from 47% in March 2007 to 63% in December 2011. From 2010 to 2011, coverage increased by 7 percentage points. Coverage of 2 doses of hepatitis A vaccine has increased from 31% in March 2007 to 58% in December 2011.