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 0.030351299999999998 0.0 0.0910539 8 h after dark 0.096338 0.0 0.289014 12 h after dark 0.0 0.0 0.0