condition	mean	min	max
4 h after light	18.114705999999998	14.979916	21.249496
8 h after light	21.283474499999997	18.253565	24.313384
12 h after light	17.672107	14.558237	20.785977
4 h after dark	17.31317	16.890533	17.735807
8 h after dark	15.513359999999999	10.967808	20.058912
12 h after dark	14.984206	14.984206	14.984206