condition	mean	min	max
0 h after light	7.281775	7.12375	7.4398
4 h after light	7.161804999999999	6.75651	7.5671
8 h after light	8.015705	7.74161	8.2898
4 h after dark	8.04656	7.40338	8.68974
8 h after dark	8.10003	7.75574	8.44432
12 h after dark	8.055444999999999	7.65981	8.45108