condition mean min max 4 h after light 0.2603845 0.116428 0.404341 8 h after light 1.3004099999999998 1.08479 1.51603 12 h after light 9.42138 8.98612 9.85664 4 h after dark 2.70818 2.04304 3.37332 8 h after dark 1.57115 1.30045 1.84185 12 h after dark 0.907214 0.894228 0.9202