Age(years) 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Frequency %
<1 1 1 1 2 1 1 2 1 - - 10 10.10%
1-2 2 4 4 2 3 3 7 3 3 1 32 32.32%
3-4 5 2 7 2 4 2 6 3 2 7 40 40.40%
5-6 1 2 1 - 1 2 1 - - - 8 8.08%
>7 2 - 1 - 3 - 2 - - 1 9 9.09%
  11 9 14 6 12 8 18 7 5 9 99  
Table 2: Distribution of retinoblastoma patients based on age.