condition mean min max 4 h after light 0.754 0.723236 0.798679 8 h after light 1.066719 0.315423 2.25025 12 h after light 1.5047936666666666 0.990121 1.88096 4 h after dark 1.3584633333333334 1.15983 1.57351 8 h after dark 1.3175379999999999 0.756414 2.0456 12 h after dark 2.22562 1.41215 2.70295