condition	mean	min	max
4 h after light	17.72825	16.776	18.6805
8 h after light	21.3479	18.4245	24.2713
12 h after light	27.21775	23.6088	30.8267
4 h after dark	24.5869	22.8961	26.2777
8 h after dark	31.97035	31.7498	32.1909
12 h after dark	24.15155	23.1698	25.1333