condition mean min max 3 h after light 0.9009496666666666 0.422299 1.23303 6 h after light 0.869572 0.74465 1.08591 9 h after light 0.7553193333333333 0.560363 0.876543 12 h after light 1.161828 0.958982 1.46739 3 h after dark 1.1894133333333334 0.84644 1.6637 6 h after dark 0.9905033333333333 0.422036 1.58968 9 h after dark 1.044031 0.683903 1.24368 12 h after dark 0.8769454999999999 0.652701 1.10119