condition	mean	min	max
4 h after light	18.477272499999998	18.41063	18.543915
8 h after light	16.6147575	15.796514	17.433001
12 h after light	15.0280925	13.714954	16.341231
4 h after dark	16.4245315	16.325964	16.523099
8 h after dark	17.421438	14.603359	20.239517
12 h after dark	18.019852	18.019852	18.019852