condition	mean	min	max
0 h after light	9.997545	9.54629	10.4488
4 h after light	13.6913	13.372	14.0106
8 h after light	18.741500000000002	18.3794	19.1036
4 h after dark	19.20435	17.7204	20.6883
8 h after dark	18.884349999999998	17.4342	20.3345
12 h after dark	11.6676	10.3513	12.9839