condition	mean	min	max
4 h after light	18.361373999999998	18.073081	18.649667
8 h after light	17.8135365	16.501733	19.12534
12 h after light	21.2874655	19.4912	23.083731
4 h after dark	23.644167	23.423741	23.864593
8 h after dark	22.5494385	19.084893	26.013984
12 h after dark	22.761535	22.761535	22.761535