I don't know how to answer that. Is it JUST for minis or is it for big horses also?
If it's ALL horses ( AQHA & APHA , AMHR ) We spend or 16+ hrs. We train the minis for jumping, cart.. AQHA & APHA are in training for english, western pleasure, reining, cutting, barrels, trail. We spent OVER 16 hrs. Saturday and Sunday we train horses all day. Not all horses get rode every day. I'm not counting jog/lunge line time.
If it's for mini only... 7-8.. includes lunging