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The difference in between real uniqueness and uniqueness estimated making the uniform distribution assumption.
| % Uniques | |||
|---|---|---|---|
| Fiscal Yr | Total of Births | Uniform Dist. | Real |
| 2004 | 113,220 | 97.8% | 93.9% |
| 2005 | 120,803 | 97.5% | 94.0% |
| 2006 | 125,724 | 97.6% | 94.0% |
| 2007 | 136,980 | 98.0% | 94.5% |
| 2008 | 139,278 | 98.2% | 94.7% |
