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| Table 1a. Mode to Work by Gender 1 | Census 2000 | 2007-2009 ACS | 2010-2012 ACS | Is the numeric change between Census 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| Male | At Place of Residence | |||||||||
| Total Workers | 975,290 | 100.0 | 3,533 | 1,030,243 | 100.0 | 5,744 | 1,019,001 | 100.0 | 5,569 | Yes |
| Drove alone | 763,635 | 78.3 | 3,220 | 827,399 | 80.3 | 5,226 | 828,212 | 81.3 | 5,896 | Yes |
| 2-person Carpool | 101,080 | 10.4 | 1,272 | 87,080 | 8.5 | 3,020 | 81,720 | 8.0 | 3,021 | Yes |
| 3-or-more-person Carpool | 33,965 | 3.5 | 743 | 32,347 | 3.1 | 2,137 | 28,730 | 2.8 | 1,786 | Yes |
| Transit | 16,520 | 1.7 | 519 | 10,502 | 1.0 | 1,158 | 10,988 | 1.1 | 1,086 | Yes |
| Bike | 5,070 | 0.5 | 288 | 5,454 | 0.5 | 802 | 6,039 | 0.6 | 772 | Yes |
| Walked | 21,385 | 2.2 | 590 | 21,536 | 2.1 | 1,605 | 22,175 | 2.2 | 1,476 | No |
| Taxi, Motorcycle and Other means | 16,345 | 1.7 | 516 | 20,530 | 2.0 | 1,660 | 20,920 | 2.1 | 1,578 | Yes |
| Worked at Home | 17,285 | 1.8 | 531 | 25,395 | 2.5 | 1,709 | 20,217 | 2.0 | 1,229 | Yes |
| Table 1b. Mode to Work by Gender 1 | Census 2000 | 2007-2009 ACS | 2010-2012 ACS | Is the numeric change between Census 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| Female | At Place of Residence | |||||||||
| Total Workers | 855,765 | 100.0 | 3,366 | 912,194 | 100.0 | 6,433 | 932,196 | 100.0 | 5,768 | Yes |
| Drove alone | 666,505 | 77.9 | 3,047 | 750,958 | 82.3 | 6,830 | 773,063 | 82.9 | 5,638 | Yes |
| 2-person Carpool | 87,865 | 10.3 | 1,188 | 72,386 | 7.9 | 2,913 | 70,711 | 7.6 | 2,601 | Yes |
| 3-or-more-person Carpool | 26,725 | 3.1 | 659 | 22,035 | 2.4 | 1,747 | 20,145 | 2.2 | 1,217 | Yes |
| Transit | 23,890 | 2.8 | 624 | 14,144 | 1.6 | 1,292 | 15,252 | 1.6 | 1,346 | Yes |
| Bike | 1,575 | 0.2 | 161 | 1,457 | 0.2 | 364 | 2,304 | 0.2 | 382 | Yes |
| Walked | 18,800 | 2.2 | 554 | 17,595 | 1.9 | 1,234 | 16,604 | 1.8 | 1,487 | Yes |
| Taxi, Motorcycle and Other means | 8,360 | 1.0 | 370 | 9,358 | 1.0 | 1,056 | 10,923 | 1.2 | 997 | Yes |
| Worked at Home | 22,045 | 2.6 | 599 | 24,261 | 2.7 | 1,349 | 23,194 | 2.5 | 1,349 | No |
Notes:
* The coefficient of variation (CV) can be derived by the standard error (SE) divided by the estimate, while SE = MOE/1.645.
** The z-value of the difference of the two estimates are used to determined if the two estimates are significantly different at 90% confidence level.
1 Census 2000 Table 1-002, 2007-2009 ACS Table B08006 and 2010-2012 ACS B08006
