condition	mean	min	max
4 h after light	4.27569	4.20901	4.354019999999999
8 h after light	4.243503333333333	4.2208	4.28641
12 h after light	4.245923333333333	4.13486	4.4161
4 h after dark	4.3245933333333335	4.25992	4.3832699999999996
8 h after dark	4.273996666666666	4.20527	4.31467
12 h after dark	4.25151	4.20791	4.32676