condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0240245 0.0 0.0720735 12 h after light 0.007895033333333334 0.0 0.0236851 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0