condition	mean	min	max
0 h after light	5.86073	5.06435	6.65711
4 h after light	14.6755	14.4198	14.9312
8 h after light	21.67345	14.8663	28.4806
4 h after dark	22.9281	17.3076	28.5486
8 h after dark	15.5609	14.1068	17.015
12 h after dark	7.11683	4.76807	9.46559