condition	mean	min	max
0 h after light	20.110950000000003	18.8944	21.3275
4 h after light	13.9855	13.0154	14.9556
8 h after light	9.31385	7.0432	11.5845
4 h after dark	13.3553	13.1198	13.5908
8 h after dark	13.29535	12.3184	14.2723
12 h after dark	15.4023	12.9986	17.806