condition	mean	min	max
4 h after light	4.369576666666667	4.35615	4.37935
8 h after light	4.294926666666667	4.26498	4.3211900000000005
12 h after light	4.308146666666667	4.1727	4.5447
4 h after dark	4.39819	4.31154	4.538469999999999
8 h after dark	4.28447	4.1491	4.40626
12 h after dark	4.28401	4.24218	4.3204