condition mean min max 4 h after light 5.629983999999999 5.013184 6.287026999999999 8 h after light 4.824514333333333 3.169223 7.734988 12 h after light 6.201623666666667 4.76914 6.919274000000001 16 h after light 7.080454333333333 4.680055 10.417689999999999 4 h after dark 6.393906333333334 4.176141 8.198061000000001 8 h after dark 1.81478 1.587491 2.150538