condition mean min max 4 h after light 4.467713333333333 4.4398800000000005 4.50871 8 h after light 4.602813333333334 4.58641 4.61728 12 h after light 4.75769 4.716 4.8269 4 h after dark 4.662086666666667 4.50243 4.86535 8 h after dark 4.60502 4.50588 4.71864 12 h after dark 4.37205 4.27377 4.51242