condition mean min max 4 h after light 3.3958199999999996 3.17487 3.61677 8 h after light 1.90522 1.76988 2.04056 12 h after light 2.228445 2.17339 2.2835 4 h after dark 2.587893333333333 2.31673 2.95151 8 h after dark 3.5717233333333334 3.28098 3.80746 12 h after dark 3.564026666666667 3.07628 3.93568