condition	mean	min	max
4 h after light	15.0395	14.7339	15.3451
8 h after light	15.0836	14.5045	15.6627
12 h after light	19.19225	18.5273	19.8572
4 h after dark	31.8012	29.3361	33.2971
8 h after dark	30.690733333333334	25.5099	36.0994
12 h after dark	22.66303333333333	21.4058	24.0536