condition mean min max 0 h after light 1.29982 1.29866 1.30098 4 h after light 0.6509105 0.640203 0.661618 8 h after light 1.964365 1.28482 2.64391 4 h after dark 0.638984 0.637724 0.640244 8 h after dark 0.0 0.0 0.0 12 h after dark 0.9656210000000001 0.634332 1.29691