condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0051873 0.0 0.0103746 4 h after dark 0.0 0.0 0.0 8 h after dark 0.011341033333333334 0.0 0.0340231 12 h after dark 0.0 0.0 0.0