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Percentage of the population reporting 'German' ancestry (%):
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| 9.6% | 10.9% | 12.1% | 13.3% | 14.5% | 15.8% |
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Percentage of the population reporting 'American' ancestry (%):
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| 16.1% | 16.9% | 17.8% | 18.6% | 19.4% | 20.2% |
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Percentage of the population reporting 'English' ancestry (%):
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| 12.0% | 12.8% | 13.6% | 14.3% | 15.1% | 15.9% |
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Percentage of the population reporting 'Scotch-Irish' ancestry (%):
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| 9.3% | 10.1% | 10.9% | 11.7% | 12.4% | 13.3% |
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Percentage of the population reporting 'Irish' ancestry (%):
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| 10.0% | 10.8% | 11.4% | 12.1% | 12.8% | 13.5% |
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Percentage of the population reporting 'Scottish' ancestry (%):
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| 3.06% | 3.21% | 3.36% | 3.51% | 3.67% | 3.82% |
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Percentage of the population reporting 'Italian' ancestry (%):
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| 1.70% | 1.96% | 2.22% | 2.47% | 2.72% | 2.98% |
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Percentage of the population reporting 'French' ancestry (%):
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| 0.85% | 1.10% | 1.35% | 1.60% | 1.85% | 2.10% |
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Percentage of the population reporting 'Dutch' ancestry (%):
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Percentage of the population reporting 'European' ancestry (%):
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Percentage of the population reporting 'British' ancestry (%):
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| 0.58% | 0.69% | 0.80% | 0.90% | 1.01% | 1.12% |
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Percentage of the population reporting 'Danish' ancestry (%):
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| 0.00% | 0.12% | 0.23% | 0.35% | 0.47% | 0.59% |
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Percentage of the population reporting 'Welsh' ancestry (%):
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| 0.366% | 0.372% | 0.378% | 0.383% | 0.389% | 0.395% |
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Percentage of the population reporting 'Swiss' ancestry (%):
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| 0.00% | 0.10% | 0.20% | 0.30% | 0.40% | 0.50% |
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Percentage of the population reporting 'Russian' ancestry (%):
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| 0.264% | 0.290% | 0.316% | 0.342% | 0.368% | 0.395% |
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Percentage of the population reporting ' Mexican' ancestry (%):
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| 0.00% | 0.21% | 0.41% | 0.62% | 0.83% | 1.04% |
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Percentage of the population reporting ' Cuban' ancestry (%):
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| 0.00% | 0.12% | 0.24% | 0.36% | 0.48% | 0.61% |
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Percentage of the population reporting ' Central American' ancestry (%):
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| 0.00% | 0.06% | 0.11% | 0.17% | 0.22% | 0.29% |
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Percentage of the population reporting ' Guatemalan' ancestry (%):
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| 0.00% | 0.06% | 0.11% | 0.17% | 0.22% | 0.29% |
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Percentage of the population reporting ' Puerto Rican' ancestry (%):
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| 0.00% | 0.12% | 0.25% | 0.37% | 0.50% | 0.63% |
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