DIAGRAM | PAGE | 1. Average interval before filing petition after attainment of twenty-one years (or time of arrival, if arriving after twenty-one years) for petitioners arriving at ages of one to fourteen, fifteen to twenty, and twenty-one years and over | 242 | 2. Average interval before filing petition after arrival at age twenty-one or over by races. The bars which are in black represent countries from which the subject people constituted almost entirely the immigration to this country | 245 |
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