450 0.055 452 0.077 454 0.157 456 0.183 458 0.206 460 0.241 462 0.299 464 0.419 466 0.616 468 0.956 470 1.636 472 3.21 474 7.302 476 21.054 478 39.539 480 63.734 482 79.798 484 83.269 486 87.419 488 93.6 490 98.875 492 100 494 99.1 496 96.763 498 90.751 500 73.831 502 44.411 504 26.855 506 13.595 508 7.07 510 3.607 512 2.473 514 1.631 516 1.128 518 0.802 520 0.588 522 0.465 524 0.375 526 0.316 528 0.276 530 0.25