condition	mean	min	max
0 h after light	6.37676	6.22168	6.53184
4 h after light	6.558339999999999	5.80659	7.31009
8 h after light	5.43103	5.08505	5.77701
4 h after dark	6.111235	5.91254	6.30993
8 h after dark	6.61968	6.43305	6.80631
12 h after dark	8.154835	7.11322	9.19645