How old where the DJ, Stephanie and Michelle in season 1,2,3,4,5,6,7 and 8

Season 1: DJ (11-12), Stephanie (5-6) & Michelle (1)
Season 2: DJ (12-13), Stephanie (6-7) & Michelle (2)
Season 3: DJ (13-14), Stephanie (7-8) & Michelle (3)
Season 4: DJ (14-15), Stephanie (8-9) & Michelle (4)
Season 5: DJ (15-16), Stephanie (9-10) & Michelle (5)
Season 6: DJ (16-17), Stephanie (10-11) & Michelle (6)
Season 7: DJ (17-18), Stephanie (11-12) & Michelle (7)
Season 8: DJ (18-19), Stephanie (12-13) & Michelle (8)