condition mean min max 0 h after light 6.668424999999999 6.36863 6.96822 4 h after light 5.377185 4.47525 6.27912 8 h after light 4.49369 4.02177 4.96561 4 h after dark 7.334705 6.92021 7.7492 8 h after dark 5.830525 5.60504 6.05601 12 h after dark 5.564225 4.63306 6.49539