condition	mean	min	max
0 h after light	9.471405	9.36532	9.57749
4 h after light	13.7287	12.127	15.3304
8 h after light	26.22215	22.8403	29.604
4 h after dark	29.7726	28.6938	30.8514
8 h after dark	21.3599	19.7925	22.9273
12 h after dark	11.64555	10.423	12.8681