condition mean min max 4 h after light 4.862245 3.74126 5.98323 8 h after light 5.11771 4.2451 5.99032 12 h after light 5.36054 4.40515 6.31593 4 h after dark 4.214343333333333 3.63396 4.62965 8 h after dark 6.379436666666667 4.84172 7.5049 12 h after dark 8.46622 7.50427 9.6407