condition	mean	min	max
4 h after light	20.85065	19.208	22.4933
8 h after light	11.5378	11.4965	11.5791
12 h after light	15.8417	14.4974	17.186
4 h after dark	20.8342	19.8054	21.863
8 h after dark	35.19815	33.3751	37.0212
12 h after dark	30.70685	29.5842	31.8295