condition	mean	min	max
4 h after light	5.2642	4.01655	6.51185
8 h after light	8.336549999999999	8.27032	8.40278
12 h after light	20.9577	20.2013	21.7141
4 h after dark	10.18283	8.49286	11.8728
8 h after dark	8.43475	7.25832	9.61118
12 h after dark	4.39076	4.35561	4.42591