condition	mean	min	max
4 h after light	11.24635	10.0767	12.416
8 h after light	8.75421	8.4251	9.08332
12 h after light	9.242545	7.76019	10.7249
4 h after dark	11.3673	10.9736	11.761
8 h after dark	12.6003	11.5334	13.6672
12 h after dark	11.36215	11.2209	11.5034