condition	mean	min	max
4 h after light	18332.9	18332.9	18332.9
8 h after light	19547.3	19429.5	19665.1
12 h after light	12818.6	7485.3	18151.9
4 h after dark	13717.5	7549.1	19885.9
8 h after dark	11766.650000000001	7764.6	15768.7
12 h after dark	6087.95	4217.5	7958.4