condition mean min max 2 h after light 254.01475 42.4475 454.091 6 h after light 461.84833333333336 260.677 762.828 10 h after light 376.675 172.352 705.392 14 h after light 468.4255 127.036 1136.24 18 h after light 301.47145 99.8177 598.03 2 h after dark 221.1496 54.5838 445.433