condition	mean	min	max
4 h after light	30.8619	29.9143	31.8095
8 h after light	19.26625	17.8764	20.6561
12 h after light	12.812349999999999	11.6038	14.0209
4 h after dark	8.56301	8.25342	8.8726
8 h after dark	8.277315	8.07682	8.47781
12 h after dark	19.338500000000003	17.568	21.109