condition	mean	min	max
4 h after light	5.352535	4.5574	6.14767
8 h after light	4.064915	3.97271	4.15712
12 h after light	4.04085	3.83981	4.24189
4 h after dark	4.730216666666667	4.45908	4.92199
8 h after dark	4.89752	4.06989	5.79193
12 h after dark	4.61979	3.79102	5.06687