condition mean min max 4 h after light 2.5969903333333333 2.5165509999999998 2.699052 8 h after light 2.004902 1.5120930000000001 2.300422 12 h after light 1.329904 1.287333 1.4142059999999999 16 h after light 3.8806843333333334 3.1162080000000003 4.372751 4 h after dark 2.4613126666666667 1.92691 3.4115860000000002 8 h after dark 1.4376213333333334 1.35796 1.486285