condition	mean	min	max
4 h after light	17.784945999999998	17.574837	17.995055
8 h after light	21.243251	20.734179	21.752323
12 h after light	21.336497	21.281309	21.391685
4 h after dark	24.738622499999998	18.514616	30.962629
8 h after dark	22.353122	18.399401	26.306843
12 h after dark	17.616578	17.616578	17.616578