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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 | 199,725 | 100.0 | 1,560 | 193,023 | 100.0 | 2,619 | 189,413 | 100.0 | 2,402 | Yes |
| Drove alone | 160,560 | 80.4 | 1,445 | 156,897 | 81.3 | 2,880 | 154,921 | 81.8 | 2,891 | Yes |
| 2-person Carpool | 19,030 | 9.5 | 551 | 16,119 | 8.4 | 1,176 | 13,857 | 7.3 | 1,211 | Yes |
| 3-or-more-person Carpool | 5,490 | 2.7 | 299 | 4,457 | 2.3 | 717 | 4,193 | 2.2 | 873 | Yes |
| Transit | 4,445 | 2.2 | 269 | 3,154 | 1.6 | 670 | 3,773 | 2.0 | 564 | Yes |
| Bike | 650 | 0.3 | 103 | 946 | 0.5 | 301 | 1,552 | 0.8 | 359 | Yes |
| Walked | 4,135 | 2.1 | 259 | 4,397 | 2.3 | 654 | 4,528 | 2.4 | 685 | No |
| Taxi, Motorcycle and Other means | 1,320 | 0.7 | 147 | 1,752 | 0.9 | 413 | 1,962 | 1.0 | 529 | Yes |
| Worked at Home | 4,100 | 2.1 | 258 | 5,301 | 2.7 | 708 | 4,627 | 2.4 | 598 | No |
| 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 | 185,480 | 100.0 | 1,522 | 183,816 | 100.0 | 2,461 | 182,769 | 100.0 | 2,500 | No |
| Drove alone | 147,615 | 79.6 | 1,400 | 151,933 | 82.7 | 2,210 | 150,025 | 82.1 | 2,614 | No |
| 2-person Carpool | 18,705 | 10.1 | 547 | 14,704 | 8.0 | 1,074 | 14,810 | 8.1 | 1,299 | Yes |
| 3-or-more-person Carpool | 4,255 | 2.3 | 263 | 2,847 | 1.5 | 472 | 3,100 | 1.7 | 616 | Yes |
| Transit | 4,495 | 2.4 | 270 | 4,175 | 2.3 | 560 | 4,052 | 2.2 | 591 | No |
| Bike | 155 | 0.1 | 50 | 315 | 0.2 | 187 | 239 | 0.1 | 96 | No |
| Walked | 3,570 | 1.9 | 241 | 3,607 | 2.0 | 640 | 3,368 | 1.8 | 556 | No |
| Taxi, Motorcycle and Other means | 1,114 | 0.6 | 135 | 1,035 | 0.6 | 293 | 1,073 | 0.6 | 345 | No |
| Worked at Home | 5,570 | 3.0 | 301 | 5,200 | 2.8 | 746 | 6,102 | 3.3 | 605 | 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
