condition	mean	min	max
4 h after light	6.4859	6.24756	6.72424
8 h after light	7.13258	6.53757	7.72759
12 h after light	9.286819999999999	8.98627	9.58737
4 h after dark	16.0569	15.7287	16.3851
8 h after dark	13.3721	13.1147	13.6295
12 h after dark	10.42015	10.146	10.6943