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Percentage of the population reporting 'German' ancestry (%):
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| 24.16% | 24.24% | 24.32% | 24.40% | 24.47% | 24.55% |
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Percentage of the population reporting 'American' ancestry (%):
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| 12.7% | 13.9% | 15.1% | 16.2% | 17.4% | 18.6% |
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Percentage of the population reporting 'Irish' ancestry (%):
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| 13.475% | 13.511% | 13.546% | 13.581% | 13.617% | 13.652% |
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Percentage of the population reporting 'English' ancestry (%):
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| 8.9% | 9.7% | 10.5% | 11.3% | 12.1% | 12.9% |
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Percentage of the population reporting 'Scottish' ancestry (%):
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| 3.374% | 3.385% | 3.395% | 3.405% | 3.415% | 3.426% |
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Percentage of the population reporting 'French' ancestry (%):
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| 1.69% | 1.94% | 2.19% | 2.43% | 2.68% | 2.93% |
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Percentage of the population reporting 'Dutch' ancestry (%):
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| 1.57% | 1.71% | 1.83% | 1.96% | 2.09% | 2.23% |
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Percentage of the population reporting 'Polish' ancestry (%):
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| 1.30% | 1.49% | 1.67% | 1.86% | 2.05% | 2.24% |
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Percentage of the population reporting 'Italian' ancestry (%):
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| 1.695% | 1.724% | 1.752% | 1.780% | 1.808% | 1.837% |
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Percentage of the population reporting 'Russian' ancestry (%):
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| 0.17% | 0.41% | 0.66% | 0.90% | 1.14% | 1.39% |
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Percentage of the population reporting 'Scotch-Irish' ancestry (%):
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| 0.60% | 0.71% | 0.82% | 0.93% | 1.04% | 1.15% |
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Percentage of the population reporting 'Swedish' ancestry (%):
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| 0.753% | 0.768% | 0.783% | 0.798% | 0.812% | 0.827% |
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Percentage of the population reporting 'French Canadian' ancestry (%):
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| 0.51% | 0.57% | 0.62% | 0.67% | 0.72% | 0.78% |
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Percentage of the population reporting 'Welsh' ancestry (%):
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| 0.531% | 0.543% | 0.555% | 0.567% | 0.579% | 0.591% |
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Percentage of the population reporting 'Norwegian' ancestry (%):
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| 0.408% | 0.422% | 0.437% | 0.451% | 0.465% | 0.480% |
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Percentage of the population reporting ' Mexican' ancestry (%):
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| 1.45% | 1.92% | 2.39% | 2.85% | 3.31% | 3.78% |
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Percentage of the population reporting ' South American' ancestry (%):
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| 0.00% | 0.17% | 0.34% | 0.51% | 0.68% | 0.85% |
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Percentage of the population reporting ' Venezuelan' ancestry (%):
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| 0.00% | 0.17% | 0.34% | 0.51% | 0.68% | 0.85% |
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Percentage of the population reporting ' Cuban' ancestry (%):
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| 0.00% | 0.06% | 0.11% | 0.17% | 0.22% | 0.28% |
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Percentage of the population reporting 'Korean' ancestry (%):
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| 0.000% | 0.049% | 0.099% | 0.148% | 0.198% | 0.247% |
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Percentage of the population reporting 'Filipino' ancestry (%):
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| 0.000% | 0.038% | 0.075% | 0.113% | 0.151% | 0.189% |
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Percentage of the population reporting 'Vietnamese' ancestry (%):
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| 0.000% | 0.010% | 0.021% | 0.031% | 0.041% | 0.052% |
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