condition	mean	min	max
0 h after light	13.408000000000001	12.8407	13.9753
4 h after light	15.24005	14.5375	15.9426
8 h after light	11.57615	9.0368	14.1155
4 h after dark	18.85165	17.5067	20.1966
8 h after dark	13.8019	12.6465	14.9573
12 h after dark	15.7863	13.2984	18.2742