condition mean min max 4 h after light 3.2896446666666668 3.163622 3.401368 8 h after light 3.871919 2.505983 5.636072 12 h after light 6.901122333333333 3.303687 11.41558 16 h after light 4.564518333333334 2.863644 7.107010000000001 4 h after dark 5.113460666666667 2.8339999999999996 8.118437 8 h after dark 1.856636 1.578911 2.206737