condition	mean	min	max
4 h after light	3.889403333333333	3.8662900000000002	3.9349199999999995
8 h after light	3.92263	3.7976699999999997	4.02796
12 h after light	3.9083033333333335	3.8485199999999997	3.94835
4 h after dark	3.9783600000000003	3.9283300000000003	4.0171
8 h after dark	3.8926366666666667	3.84375	3.93234
12 h after dark	3.938003333333333	3.88156	4.00925