condition mean min max 4 h after light 3.612681 3.534518 3.7352559999999997 8 h after light 3.8625873333333334 3.062231 5.435786 12 h after light 2.7533546666666666 1.881614 3.58368 16 h after light 4.601889333333333 2.813181 6.891578 4 h after dark 7.294086 3.422318 12.96373 8 h after dark 2.356601 1.8974849999999999 2.8300419999999997