I already have the main game on PS3 but I don't know how much all DLCs are digitally please tell me

https://store.playstation.com/#!/en-us/games/the-elder-scrolls-v-skyrim/cid=UP1003-BLUS30778_00-TESVSKYRIM000000

seriously though....2 seconds of google. probably just as quick if you turn on your ps3 and check the playstation store yourself too.