condition	mean	min	max
4 h after light	8.500415	7.33128	9.66955
8 h after light	5.68563	5.36826	6.003
12 h after light	5.573964999999999	5.35203	5.7959
4 h after dark	6.808133333333333	6.45398	7.33165
8 h after dark	6.2092833333333335	5.66056	6.9129
12 h after dark	7.43323	6.95134	8.32629