condition mean min max 4 h after light 11898.071666666667 10380.61333 13744.32667 8 h after light 8173.576111 5697.805 10481.52 12 h after light 1703.42 1035.773333 2816.44 1.5 h after dark 776.0911112 202.7633333 1232.476667 5.5 h after dark 2834.0744443333333 1185.293333 4317.853333 9.5 h after dark 9418.232221 7508.133333 11007.58333