condition	mean	min	max
4 h after light	17.07115	14.2319	19.9104
8 h after light	11.175	10.7797	11.5703
12 h after light	17.75925	16.8441	18.6744
4 h after dark	41.5112	41.2955	41.7269
8 h after dark	46.6719	44.3482	48.9956
12 h after dark	42.9507	39.4585	46.4429