condition	mean	min	max
4 h after light	15.654250000000001	15.2556	16.0529
8 h after light	16.5956	14.7679	18.4233
12 h after light	19.68025	19.3811	19.9794
4 h after dark	27.6158	25.3154	29.4256
8 h after dark	17.438366666666667	16.049	19.1981
12 h after dark	21.161	19.7361	22.6866