condition mean min max 4 h after light 8.410029999999999 8.05621 8.76385 8 h after light 8.181455 7.75457 8.60834 12 h after light 10.944749999999999 10.3698 11.5197 4 h after dark 15.086533333333334 14.1347 15.7449 8 h after dark 14.8995 14.6431 15.3525 12 h after dark 11.787366666666667 11.1007 12.2585