Aged 16-74. CPRES2 - Creating files (e.g. document, image, video) incorporating  several elements e.g. text, picture, table, chart, animation, sound
  1 - Ticked
  0 - Not ticked
  9 - Not applicable (IU=Blank or IU ne 1)

Individuals Creating electronic presentations
sum of IND_WGHT where (CPRES2=1)