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Percentage of the population reporting 'German' ancestry (%):
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| 19.6% | 21.6% | 23.5% | 25.4% | 27.4% | 29.3% |
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Percentage of the population reporting 'English' ancestry (%):
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| 15.2% | 16.7% | 18.3% | 19.8% | 21.4% | 22.9% |
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Percentage of the population reporting 'Irish' ancestry (%):
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| 13.1% | 15.1% | 17.1% | 19.1% | 21.1% | 23.1% |
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Percentage of the population reporting 'Swedish' ancestry (%):
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| 4.0% | 6.0% | 7.9% | 9.9% | 11.8% | 13.9% |
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Percentage of the population reporting 'Scottish' ancestry (%):
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Percentage of the population reporting 'French' ancestry (%):
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Percentage of the population reporting 'American' ancestry (%):
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Percentage of the population reporting 'Italian' ancestry (%):
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Percentage of the population reporting 'Norwegian' ancestry (%):
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Percentage of the population reporting 'European' ancestry (%):
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| 1.45% | 1.82% | 2.18% | 2.55% | 2.91% | 3.28% |
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Percentage of the population reporting 'Polish' ancestry (%):
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Percentage of the population reporting 'Czech' ancestry (%):
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Percentage of the population reporting 'Scotch-Irish' ancestry (%):
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| 0.76% | 1.12% | 1.48% | 1.84% | 2.19% | 2.56% |
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Percentage of the population reporting 'Dutch' ancestry (%):
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Percentage of the population reporting 'Russian' ancestry (%):
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| 0.35% | 0.68% | 1.00% | 1.32% | 1.65% | 1.98% |
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Percentage of the population reporting ' Mexican' ancestry (%):
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| 0.78% | 1.17% | 1.56% | 1.94% | 2.33% | 2.72% |
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Percentage of the population reporting ' Cuban' ancestry (%):
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| 0.00% | 0.21% | 0.42% | 0.63% | 0.84% | 1.06% |
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Percentage of the population reporting ' Spaniard' ancestry (%):
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| 0.00% | 0.17% | 0.34% | 0.50% | 0.67% | 0.84% |
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Percentage of the population reporting ' South American' ancestry (%):
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| 0.00% | 0.15% | 0.31% | 0.46% | 0.61% | 0.77% |
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Percentage of the population reporting ' Central American' ancestry (%):
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| 0.00% | 0.33% | 0.66% | 0.99% | 1.32% | 1.66% |
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Percentage of the population reporting 'Mixed' ancestry (%):
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| 0.00% | 0.23% | 0.47% | 0.70% | 0.93% | 1.17% |
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Percentage of the population reporting 'Vietnamese' ancestry (%):
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| 0.00% | 0.18% | 0.36% | 0.53% | 0.71% | 0.90% |
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Percentage of the population reporting 'Indian' ancestry (%):
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| 0.00% | 0.10% | 0.19% | 0.29% | 0.39% | 0.49% |
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Percentage of the population reporting 'Filipino' ancestry (%):
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| 0.00% | 0.06% | 0.13% | 0.19% | 0.25% | 0.32% |
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Percentage of the population reporting 'Chinese' ancestry (%):
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| 0.00% | 0.20% | 0.40% | 0.60% | 0.79% | 1.00% |
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