condition	mean	min	max
4 h after light	16.4994	14.0117	18.9871
8 h after light	14.0276	13.1171	14.9381
12 h after light	14.48015	13.7734	15.1869
4 h after dark	9.368003333333332	8.6391	10.7341
8 h after dark	11.5449	11.1058	11.772
12 h after dark	16.7139	15.5343	17.7962