condition	mean	min	max
4 h after light	3.851156666666667	3.7867300000000004	3.94265
8 h after light	3.855903333333333	3.7708699999999995	3.95091
12 h after light	3.8606766666666665	3.84479	3.87589
4 h after dark	3.93558	3.84815	4.02265
8 h after dark	3.86128	3.8134900000000003	3.93813
12 h after dark	3.83587	3.73331	3.93635