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Percentage of the population reporting 'German' ancestry (%):
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| 22.4% | 24.2% | 26.0% | 27.8% | 29.5% | 31.3% |
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Percentage of the population reporting 'English' ancestry (%):
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| 10.6% | 12.0% | 13.4% | 14.7% | 16.1% | 17.4% |
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Percentage of the population reporting 'Irish' ancestry (%):
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| 8.7% | 9.5% | 10.3% | 11.0% | 11.8% | 12.6% |
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Percentage of the population reporting 'American' ancestry (%):
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| 4.3% | 6.8% | 9.2% | 11.7% | 14.1% | 16.6% |
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Percentage of the population reporting 'Italian' ancestry (%):
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Percentage of the population reporting 'Swedish' ancestry (%):
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Percentage of the population reporting 'Scottish' ancestry (%):
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Percentage of the population reporting 'Norwegian' ancestry (%):
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| 1.65% | 2.14% | 2.62% | 3.11% | 3.59% | 4.08% |
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Percentage of the population reporting 'French' ancestry (%):
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Percentage of the population reporting 'Scotch-Irish' ancestry (%):
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| 1.01% | 1.48% | 1.95% | 2.41% | 2.88% | 3.35% |
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Percentage of the population reporting 'Polish' ancestry (%):
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Percentage of the population reporting 'European' ancestry (%):
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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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Percentage of the population reporting 'Canadian' ancestry (%):
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Percentage of the population reporting ' Mexican' ancestry (%):
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Percentage of the population reporting ' Spaniard' ancestry (%):
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| 0.00% | 0.18% | 0.37% | 0.55% | 0.74% | 0.93% |
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Percentage of the population reporting ' Cuban' ancestry (%):
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| 0.00% | 0.39% | 0.77% | 1.16% | 1.55% | 1.94% |
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Percentage of the population reporting ' South American' ancestry (%):
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| 0.00% | 0.17% | 0.35% | 0.52% | 0.70% | 0.88% |
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Percentage of the population reporting ' Puerto Rican' ancestry (%):
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| 0.00% | 0.14% | 0.29% | 0.43% | 0.57% | 0.72% |
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Percentage of the population reporting 'Japanese' ancestry (%):
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| 0.00% | 0.36% | 0.71% | 1.07% | 1.43% | 1.79% |
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Percentage of the population reporting 'Chinese' ancestry (%):
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| 0.00% | 0.14% | 0.28% | 0.41% | 0.55% | 0.70% |
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