condition	mean	min	max
4 h after light	19.0434	17.2113	20.8755
8 h after light	16.958750000000002	15.7545	18.163
12 h after light	21.927300000000002	18.8732	24.9814
4 h after dark	37.03803333333333	36.1115	38.4507
8 h after dark	40.903733333333335	40.612	41.415
12 h after dark	34.56183333333333	32.7307	38.1459