condition	mean	min	max
0 h after light	18.114649999999997	17.218	19.0113
4 h after light	12.67885	12.0086	13.3491
8 h after light	17.093049999999998	16.2102	17.9759
4 h after dark	19.57205	19.1538	19.9903
8 h after dark	13.426	12.1232	14.7288
12 h after dark	15.38955	14.6658	16.1133