condition	mean	min	max
4 h after light	17.75785	14.2495	21.2662
8 h after light	12.151	11.7983	12.5037
12 h after light	19.629649999999998	18.5933	20.666
4 h after dark	41.4876	40.5925	41.9453
8 h after dark	40.25646666666667	39.8001	40.5929
12 h after dark	32.2361	31.5849	33.3612