The short answer is a lot - like A LOT...
Ignoring the variants and so forth (of which there are a few) I think the basic numbers are around:
Red Cards - 18
Shadows of the Empire - 7 (including the 2, comic packs, so 9 figures)
Green Cards - 36
Freeze Frames - 27
Flashbacks - 11
Commtech - 10
EU - 9
Deluxe Cards - 13
Mail Away - 7 (Kabe & Muftak and Oola & Crumb came in a two-pack)
Millenium Coins - 7
Princess Leia 2 Packs - 4 (8 figures)
Cinema Scenes - 10 (Each with 3 figures, so 30 figures)
EP 1 Sneak Peak - 2
Complete Galaxy - 4
Max Rebo Band Pair - 3 (2 figures each, so 6)
Falcon Carry case - 2 (Wedge and Scanning Crew, 2 figures)
Classic Edition Boxset - 4 figure pack
Creatures with unique figure - 8
Vehicle with unique figure - 9 (AT-AT had two figures in it)
Hong Kong 3 packs - 2 (6 figures)
that makes 226 - Pretty sure that is accurate, might be out by 1 or 2, but it was a big line.