condition	mean	min	max
4 h after light	6.097403333333333	6.020919999999999	6.22085
8 h after light	5.761923333333334	5.6413400000000005	5.91824
12 h after light	5.7976833333333335	5.77531	5.84175
4 h after dark	5.81576	5.51599	6.03921
8 h after dark	5.89681	5.64363	6.26706
12 h after dark	5.67409	5.60513	5.78679