condition	mean	min	max
4 h after light	20.29045	19.097	21.4839
8 h after light	14.09855	13.9676	14.2295
12 h after light	14.77335	14.7725	14.7742
4 h after dark	17.883933333333335	16.597	18.5946
8 h after dark	23.388333333333332	22.9394	23.8933
12 h after dark	17.956133333333334	16.1119	19.649