condition	mean	min	max
4 h after light	8.40854	7.43271	9.38437
8 h after light	9.92625	9.7647	10.0878
12 h after light	12.5627	12.0754	13.05
4 h after dark	13.5267	11.7918	15.2616
8 h after dark	11.8461	11.4393	12.2529
12 h after dark	10.96485	10.6319	11.2978