condition mean min max 4 h after light 7.824555 6.52251 9.1266 8 h after light 3.831245 3.32075 4.34174 12 h after light 4.689925 3.02807 6.35178 4 h after dark 4.200613333333333 3.72749 4.77878 8 h after dark 8.242516666666667 5.41475 11.1369 12 h after dark 8.028873333333333 4.0612 10.2144