condition	mean	min	max
4 h after light	8.18054	6.39931	9.96177
8 h after light	10.5791	10.4905	10.6677
12 h after light	12.7684	11.8161	13.7207
4 h after dark	17.2944	16.2945	17.9207
8 h after dark	15.434266666666668	13.5561	17.0317
12 h after dark	10.229013333333333	9.79664	10.7404