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Percentage of the population aged 3 and older (%): 
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| 
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| 
Percentage of the population aged 3 and older (%): 
 | 
| 2.99% | 3.46% | 3.93% | 4.39% | 4.86% | 5.33% | 
 
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| 
Percentage of the population aged 3 and older (%): 
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| 
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| 
Percentage of the population aged 3 and older (%): 
 | 
| 2.25% | 2.76% | 3.25% | 3.75% | 4.25% | 4.75% | 
 
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| 
Percentage of the population aged 3 and older (%): 
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| 3.09% | 3.40% | 3.71% | 4.02% | 4.33% | 4.65% | 
 
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| 
Percentage of the population aged 3 and older (%): 
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| 0.25% | 0.47% | 0.68% | 0.88% | 1.09% | 1.30% | 
 
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| 
Percentage of the population aged 3 and older (%): 
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| 1.079% | 1.120% | 1.160% | 1.200% | 1.240% | 1.281% | 
 
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| 
Percentage of the school-enrolled population 3 years and older (%): 
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| 10.1% | 12.5% | 15.0% | 17.4% | 19.8% | 22.3% | 
 
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| 
Percentage of the population aged 3 and older (%): 
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| 
 | 
 
| 
Percentage of the population aged 3 and older (%): 
 | 
| 
 | 
 
| 
Percentage of the population aged 3 and older (%): 
 | 
| 
 | 
 
| 
Percentage of the population aged 3 and older (%): 
 | 
| 2.25% | 2.72% | 3.17% | 3.63% | 4.09% | 4.55% | 
 
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| 
Percentage of the population aged 3 and older (%): 
 | 
| 
 | 
 
| 
Percentage of the population aged 3 and older (%): 
 | 
| 0.00% | 0.31% | 0.61% | 0.92% | 1.22% | 1.53% | 
 
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| 
Percentage of the population aged 3 and older (%): 
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| 0.87% | 1.17% | 1.46% | 1.76% | 2.06% | 2.36% | 
 
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| 
Percentage of the school-enrolled population 3 years and older (%): 
 | 
| 8.1% | 11.2% | 14.3% | 17.4% | 20.5% | 23.7% | 
 
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School enrollment reports on persons actively enrolled in an educational institution at the time of the survey. On this page, the following grade levels are used: 
- 
Preschool: 
anything before kindergarten, typically anything between ages 2 and 4
 
- 
Kindergarten: 
the year before first grade, typically around age 5
 
- 
Grades 1-12: 
typically started at age 6 and lasting until age 17 or 18
 
- 
Undergraduate: 
in this context, it means and two or four year college, but excluding any graduate education
 
- 
Graduate School: 
anything above undergraduate, including pursuit of master's, professional, or doctorate degrees
 
- 
Public School: 
owned and operated by the government
 
- 
Private School: 
owned and operated by a private organization, often but not always with a religious affiliation
 
For additional information about the data presented on this site, including our sources, please see the About Page.