condition	mean	min	max
4 h after light	36.266386499999996	31.323667	41.209106
8 h after light	20.159477000000003	18.43165	21.887304
12 h after light	17.348077500000002	16.341231	18.354924
4 h after dark	18.077057	16.815578	19.338536
8 h after dark	14.7907615	12.767242	16.814281
12 h after dark	24.799137	24.799137	24.799137