condition	mean	min	max
4 h after light	10.71703	9.41546	12.0186
8 h after light	8.60481	8.36329	8.84633
12 h after light	9.92817	9.88631	9.97003
4 h after dark	11.741753333333333	9.66906	14.2519
8 h after dark	12.2322	11.4327	12.7306
12 h after dark	14.674566666666665	12.9248	17.0812