condition	mean	min	max
0 h after light	39.11985	36.8128	41.4269
4 h after light	14.47175	13.388	15.5555
8 h after light	10.282805	9.86691	10.6987
4 h after dark	15.2184	11.9799	18.4569
8 h after dark	20.48905	19.7202	21.2579
12 h after dark	25.07385	18.7362	31.4115