condition mean min max 4 h after light 2.978333 2.8868720000000003 3.1120259999999997 8 h after light 2.174183333333333 1.547447 2.546131 12 h after light 2.1841806666666668 1.284485 3.656193 16 h after light 2.897242 2.412887 3.466737 4 h after dark 2.9403736666666664 2.1983919999999997 3.871843 8 h after dark 1.5262179999999999 1.4825959999999998 1.562965