condition	mean	min	max
4 h after light	12106.9	12106.9	12106.9
8 h after light	12623.85	11591.1	13656.6
12 h after light	12879.95	12366.4	13393.5
4 h after dark	14961.7	11799.5	18123.9
8 h after dark	15325.65	13913.3	16738.0
12 h after dark	14469.1	14081.6	14856.6