condition	mean	min	max
4 h after light	9.90127	9.538025	10.264515
8 h after light	8.827406	8.46238	9.192432
12 h after light	9.251399	8.739504	9.763294
4 h after dark	9.5317565	8.566345	10.497168
8 h after dark	9.427754499999999	8.245647	10.609862
12 h after dark	8.999857	8.999857	8.999857