condition	mean	min	max
4 h after light	3164.4	3164.4	3164.4
8 h after light	9498.3	3403.8	15592.8
12 h after light	16947.1	14264.7	19629.5
4 h after dark	12881.0	6522.7	19239.3
8 h after dark	5041.85	3684.1	6399.6
12 h after dark	2886.3	1684.9	4087.7