condition	mean	min	max
4 h after light	4.351546666666667	4.206169999999999	4.63465
8 h after light	4.22808	4.15914	4.31602
12 h after light	4.256213333333333	4.10789	4.42375
4 h after dark	4.17345	4.15665	4.18273
8 h after dark	4.324153333333333	4.09577	4.6980699999999995
12 h after dark	4.288296666666667	4.0782	4.53616