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Percentage of the population reporting 'American' ancestry (%):
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| 16.8% | 19.5% | 22.1% | 24.7% | 27.3% | 29.9% |
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Percentage of the population reporting 'Irish' ancestry (%):
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| 10.2% | 11.1% | 12.0% | 12.9% | 13.7% | 14.6% |
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Percentage of the population reporting 'German' ancestry (%):
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| 6.1% | 7.5% | 8.9% | 10.3% | 11.7% | 13.1% |
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Percentage of the population reporting 'English' ancestry (%):
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| 5.9% | 6.9% | 7.9% | 8.9% | 9.9% | 10.9% |
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Percentage of the population reporting 'Scotch-Irish' ancestry (%):
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| 0.39% | 0.73% | 1.07% | 1.41% | 1.75% | 2.10% |
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Percentage of the population reporting 'Scottish' ancestry (%):
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Percentage of the population reporting 'Scandinavian' ancestry (%):
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Percentage of the population reporting 'Norwegian' ancestry (%):
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| 0.00% | 0.41% | 0.82% | 1.23% | 1.63% | 2.05% |
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Percentage of the population reporting 'Welsh' ancestry (%):
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| 0.00% | 0.38% | 0.77% | 1.15% | 1.54% | 1.93% |
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Percentage of the population reporting 'European' ancestry (%):
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| 0.00% | 0.38% | 0.75% | 1.13% | 1.51% | 1.89% |
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Percentage of the population reporting 'French' ancestry (%):
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Percentage of the population reporting 'Polish' ancestry (%):
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| 0.25% | 0.70% | 1.15% | 1.60% | 2.05% | 2.51% |
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Percentage of the population reporting 'British' ancestry (%):
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| 0.00% | 0.24% | 0.48% | 0.72% | 0.96% | 1.20% |
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Percentage of the population reporting 'Dutch' ancestry (%):
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Percentage of the population reporting 'Italian' ancestry (%):
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Percentage of the population reporting ' Mexican' ancestry (%):
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Percentage of the population reporting ' Puerto Rican' ancestry (%):
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| 0.000% | 0.047% | 0.095% | 0.142% | 0.190% | 0.238% |
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Percentage of the population reporting ' Cuban' ancestry (%):
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| 0.000% | 0.026% | 0.052% | 0.077% | 0.103% | 0.129% |
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Percentage of the population reporting ' Central American' ancestry (%):
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| 0.00% | 0.06% | 0.12% | 0.18% | 0.24% | 0.31% |
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Percentage of the population reporting 'Vietnamese' ancestry (%):
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| 0.00% | 0.16% | 0.32% | 0.48% | 0.64% | 0.80% |
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Percentage of the population reporting 'American' ancestry (%):
|
| 22.2% | 24.3% | 26.2% | 28.2% | 30.2% | 32.2% |
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Percentage of the population reporting 'Irish' ancestry (%):
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| 11.3% | 11.9% | 12.4% | 12.9% | 13.4% | 14.0% |
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Percentage of the population reporting 'German' ancestry (%):
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| 6.4% | 8.0% | 9.5% | 11.0% | 12.5% | 14.1% |
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Percentage of the population reporting 'English' ancestry (%):
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| 6.0% | 7.7% | 9.4% | 11.1% | 12.8% | 14.5% |
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Percentage of the population reporting 'Scotch-Irish' ancestry (%):
|
| 0.65% | 0.94% | 1.22% | 1.51% | 1.79% | 2.08% |
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Percentage of the population reporting 'Scottish' ancestry (%):
|
| 1.64% | 1.89% | 2.13% | 2.37% | 2.61% | 2.85% |
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Percentage of the population reporting 'Scandinavian' ancestry (%):
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| 0.00% | 0.31% | 0.63% | 0.94% | 1.26% | 1.58% |
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Percentage of the population reporting 'Norwegian' ancestry (%):
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| 0.00% | 0.26% | 0.51% | 0.77% | 1.02% | 1.28% |
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Percentage of the population reporting 'Welsh' ancestry (%):
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| 0.00% | 0.24% | 0.48% | 0.72% | 0.96% | 1.21% |
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Percentage of the population reporting 'European' ancestry (%):
|
| 0.37% | 0.53% | 0.69% | 0.86% | 1.02% | 1.18% |
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Percentage of the population reporting 'French' ancestry (%):
|
| 0.09% | 0.27% | 0.45% | 0.64% | 0.82% | 1.00% |
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Percentage of the population reporting 'Polish' ancestry (%):
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| 0.13% | 0.51% | 0.89% | 1.26% | 1.64% | 2.02% |
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Percentage of the population reporting 'British' ancestry (%):
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| 0.20% | 0.34% | 0.48% | 0.62% | 0.76% | 0.90% |
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Percentage of the population reporting 'Dutch' ancestry (%):
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Percentage of the population reporting 'Italian' ancestry (%):
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| 0.51% | 0.76% | 1.01% | 1.26% | 1.51% | 1.76% |
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Percentage of the population reporting ' Mexican' ancestry (%):
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| 0.00% | 0.13% | 0.26% | 0.39% | 0.52% | 0.65% |
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Percentage of the population reporting ' Puerto Rican' ancestry (%):
|
| 0.00% | 0.06% | 0.13% | 0.19% | 0.25% | 0.32% |
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Percentage of the population reporting ' Central American' ancestry (%):
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| 0.00% | 0.08% | 0.16% | 0.24% | 0.32% | 0.41% |
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Percentage of the population reporting 'Vietnamese' ancestry (%):
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| 0.00% | 0.10% | 0.20% | 0.30% | 0.40% | 0.50% |
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