condition	mean	min	max
4 h after light	9.144375	8.76421	9.52454
8 h after light	7.397645	6.79285	8.00244
12 h after light	7.572175	6.74509	8.39926
4 h after dark	12.39947	9.39834	15.4006
8 h after dark	10.321245000000001	9.52649	11.116
12 h after dark	10.0839	9.9724	10.1954