condition	mean	min	max
4 h after light	20.400298	16.272419	24.528177
8 h after light	21.1047205	19.049575	23.159866
12 h after light	20.9059115	16.523099	25.288724
4 h after dark	29.370371499999997	24.27918	34.461563
8 h after dark	33.233263	30.141478	36.325048
12 h after dark	17.740296	17.740296	17.740296