condition	mean	min	max
4 h after light	16.5707	15.632	17.5094
8 h after light	23.16085	22.8876	23.4341
12 h after light	18.88375	18.6825	19.085
4 h after dark	26.323549999999997	24.8995	27.7476
8 h after dark	21.308500000000002	21.1252	21.4918
12 h after dark	19.5384	19.3825	19.6943