condition mean min max 0 h after light 2.122035 1.24271 3.00136 2 h after light 1.84631 1.61899 2.07363 4 h after light 1.0349445 0.938339 1.13155 8 h after light 1.070227 0.715294 1.42516 12 h after light 2.677305 2.10831 3.2463 2 h after dark 3.42094 2.32581 4.51607 4 h after dark 2.577025 1.38176 3.77229 8 h after dark 4.2153 3.75636 4.67424 12 h after dark 3.04284 1.89611 4.18957