condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.177678 0.0 0.533034 12 h after light 0.077116 0.0 0.231348 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.13110033333333335 0.0 0.393301