Table A3
Percentiles affected by errors in the estimation of interfractile average incomes, 1917–2011
| Errors | Number |
|---|---|
| P90–P95>P95 | 221 |
| P95–P99>P99 | 1 |
| P99–99.5>P99.5 | 14 |
| P99.5–99.9>P99.9 | 5 |
| P99.9–99.99>P99.99 | 3 |
Note: This table does not include errors reported in Table A2.
Source: Authors' analysis of state-level tax data from Sommeiller (2006) extended to 2011 using state-level data from the Internal Revenue Service SOI Tax Stats (various years), and Piketty and Saez (2012)
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