condition mean min max 4 h after light 3.2239033333333333 2.19513 3.82979 8 h after light 1.3604286666666667 0.341896 2.1 12 h after light 1.332316 0.687226 2.36656 4 h after dark 3.13 2.30343 3.98008 8 h after dark 3.3112500000000002 2.93027 4.01177 12 h after dark 2.78332 2.07011 3.29505