condition	mean	min	max
0 h after light	6.651375	6.48973	6.81302
4 h after light	4.765560000000001	4.71032	4.8208
8 h after light	3.464115	2.94644	3.98179
4 h after dark	4.76771	4.68963	4.84579
8 h after dark	5.4325849999999996	4.64046	6.22471
12 h after dark	5.6027450000000005	5.12399	6.0815