condition	mean	min	max
4 h after light	7.575459499999999	7.092866	8.058053
8 h after light	7.957133000000001	7.869884	8.044382
12 h after light	7.6262235	7.490724	7.761723
4 h after dark	7.3901235	7.30143	7.478817
8 h after dark	7.6020225	7.490724	7.713321
12 h after dark	6.880424	6.880424	6.880424