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 0.0 0.0 0.0 4 h after dark 0.036636666666666665 0.0 0.10991 8 h after dark 0.16937866666666668 0.0 0.508136 12 h after dark 0.0 0.0 0.0