condition mean min max 2 h after light 0.9419103333333333 0.813176 1.09042 6 h after light 0.9090213333333333 0.862838 0.964357 10 h after light 0.952821 0.826671 1.05493 2 h after dark 1.30196 1.15947 1.48095 6 h after dark 1.7854033333333335 1.67063 1.88724 10 h after dark 1.81808 1.67105 1.92429