condition mean min max 4 h after light 3.4155100000000003 3.3367410000000004 3.5094519999999996 8 h after light 2.4736523333333333 1.516981 2.960118 12 h after light 1.64412 1.489101 1.7924939999999998 16 h after light 3.6122033333333334 3.2957959999999997 3.911809 4 h after dark 2.826712 2.51337 3.253111 8 h after dark 1.7411063333333334 1.625592 1.801177