condition mean min max 4 h after light 154.9747615 131.575117 178.374406 8 h after light 173.30831 171.078211 175.538409 12 h after light 235.099382 215.069522 255.129242 4 h after dark 322.985454 217.157242 428.813666 8 h after dark 299.483865 238.662093 360.305637 12 h after dark 215.069522 215.069522 215.069522