condition mean min max 3 h after light 48.27956666666667 41.2475 52.1718 6 h after light 132.262 117.676 145.387 9 h after light 187.97933333333333 176.207 198.364 12 h after light 192.91365 98.9936 231.198 3 h after dark 372.10766666666666 351.188 398.341 6 h after dark 361.977 351.595 375.972 9 h after dark 277.01033333333334 271.802 280.337 12 h after dark 102.28774999999999 87.6505 116.925