Broncos 6 - Home, Away, Heritage, Indigenous, Women in League, Neon
Raiders 5 - Home, Away, Indigenous, Women in League, Ricky Stuart Fdn
Bulldogs 3* - Home, Away, Indigenous
Sharks 4 - Home, Away, Indigenous, Kokoda
Titans 4 - Home, Away, Heritage, Indigenous
Manly 5 - Home, Away, Indigenous, Women in League, Maori
Storm 6 - Home, Away, Heritage, Indigenous, Women in League, ANZAC
Knights 6 - Home, Away, Heritage, Women in League, MHF, Indigenous
Cowboys 4 - Home, Away, Women in League, Indigenous
Eels 5 - Home, Away, Heritage, Foundation, Indigenous
Panthers 4 - Home, Away, Alternate, Indigenous
Dragons 4 - Home, Away, Indigenous, ANZAC
Rabbitohs 6 - Home, Away, Indigenous, ANZAC, Women in League, Alternate
Roosters 5 - Home, Away, Heritage, Indigenous, ANZAC
Warriors 5 - Home, Away, Heritage, Indigenous, Women in League
Wests Tigers 5 - Home, Away, Members, Indigenous, ANZAC
* have an alternate (all blue with white vees) and 'dogs of war' (mostly black) but haven't worn either.
So the average seems to be 4 or 5 with a few teams having six. Chance are I've forgotten a couple too.