condition	mean	min	max
0 h after light	10.20142	9.45714	10.9457
4 h after light	21.20715	18.5579	23.8564
8 h after light	19.9152	18.8945	20.9359
4 h after dark	15.72645	13.2559	18.197
8 h after dark	16.78905	14.3169	19.2612
12 h after dark	16.18455	15.9547	16.4144