condition	mean	min	max
4 h after light	18.016317	17.39637	18.636264
8 h after light	14.3716495	13.926021	14.817278
12 h after light	15.4742115	14.904159	16.044264
4 h after dark	17.973105	17.046054	18.900156
8 h after dark	17.349154499999997	14.969258	19.729051
12 h after dark	17.39637	17.39637	17.39637