condition	mean	min	max
0 h after light	18071.449999999997	17371.6	18771.3
2 h after light	20465.05	19970.1	20960.0
4 h after light	19257.7	17840.9	20674.5
8 h after light	16623.55	15333.3	17913.8
12 h after light	17566.85	16953.6	18180.1
2 h after dark	18333.1	17370.7	19295.5
4 h after dark	20025.300000000003	19722.7	20327.9
8 h after dark	18367.9	17680.9	19054.9
12 h after dark	16980.85	15929.2	18032.5