condition mean min max 3 h after light 1.3527178333333334 0.766529 2.28912 7 h after light 1.2436425833333333 0.833315 1.72817 11 h after light 1.3295895 0.784062 1.644 2 h after dark 1.31188125 0.700921 1.659 6 h after dark 1.4739385833333334 0.644863 2.13458 10 h after dark 1.4089783333333332 0.380642 1.96628