condition	mean	min	max
4 h after light	17470.9	17470.9	17470.9
8 h after light	18935.0	18272.0	19598.0
12 h after light	14498.0	11262.1	17733.9
4 h after dark	10457.15	10347.9	10566.4
8 h after dark	6799.1	4727.7	8870.5
12 h after dark	5408.0	4998.9	5817.1