condition mean min max 4 h after light 0.9514053333333333 0.709824 1.39268 8 h after light 0.442645 0.2197 0.777739 12 h after light 0.3029171666666667 0.0614105 0.482221 4 h after dark 0.12042303333333333 0.0 0.30743 8 h after dark 1.604904 0.985982 2.22203 12 h after dark 3.34401 2.33631 4.16475