condition	mean	min	max
4 h after light	6.3842	5.16813	7.60027
8 h after light	9.165045	8.75157	9.57852
12 h after light	17.649	17.517	17.781
4 h after dark	15.4293	14.8868	16.3257
8 h after dark	15.498866666666666	14.9224	16.287
12 h after dark	7.919066666666667	6.76695	9.20014