condition	mean	min	max
4 h after light	16.48724	8.33472	24.3434
8 h after light	9.47421	2.3936	16.4416
12 h after light	10.243536666666667	5.3994	15.6158
4 h after dark	16.510199999999998	11.4949	21.4452
8 h after dark	18.4296	12.2387	22.4341
12 h after dark	22.3348	18.2221	28.1351