condition	mean	min	max
0 h after light	15.990300000000001	15.9402	16.0404
4 h after light	12.256499999999999	12.1843	12.3287
8 h after light	48.1854	45.096	51.2748
4 h after dark	67.83005	56.576	79.0841
8 h after dark	43.7626	40.2902	47.235
12 h after dark	15.1039	14.3495	15.8583