condition	mean	min	max
4 h after light	20.747961	20.158296	21.337626
8 h after light	17.6407855	16.70306	18.578511
12 h after light	18.235853	13.651945	22.819761
4 h after dark	11.033569	10.58185	11.485288
8 h after dark	13.310538000000001	12.258683	14.362393
12 h after dark	30.049264	30.049264	30.049264