condition	mean	min	max
4 h after light	8.001715	6.85042	9.15301
8 h after light	6.11576	5.89782	6.3337
12 h after light	8.11491	7.74851	8.48131
4 h after dark	9.769543333333333	9.21421	10.1457
8 h after dark	10.948863333333334	9.81359	12.6829
12 h after dark	9.434733333333334	8.58563	11.0456