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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 | 472,240 | 100.0 | 3,001 | 480,240 | 100.0 | 3,503 | 469,313 | 100.0 | 3,258 | No |
| Drove alone | 369,765 | 78.3 | 2,766 | 372,277 | 77.5 | 3,806 | 365,537 | 77.9 | 3,812 | No |
| 2-person Carpool | 41,805 | 8.9 | 1,040 | 36,212 | 7.5 | 2,022 | 35,430 | 7.5 | 1,858 | Yes |
| 3-or-more-person Carpool | 11,510 | 2.4 | 551 | 8,824 | 1.8 | 1,189 | 8,527 | 1.8 | 949 | Yes |
| Transit | 16,890 | 3.6 | 666 | 15,975 | 3.3 | 1,438 | 13,632 | 2.9 | 1,228 | Yes |
| Bike | 7,780 | 1.6 | 453 | 9,415 | 2.0 | 1,041 | 11,093 | 2.4 | 1,360 | Yes |
| Walked | 8,165 | 1.7 | 464 | 10,183 | 2.1 | 1,412 | 8,550 | 1.8 | 1,008 | No |
| Taxi, Motorcycle and Other means | 4,735 | 1.0 | 354 | 10,164 | 2.1 | 1,574 | 7,005 | 1.5 | 949 | Yes |
| Worked at Home | 11,590 | 2.5 | 552 | 17,190 | 3.6 | 1,220 | 19,539 | 4.2 | 1,077 | 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 | 356,685 | 100.0 | 2,730 | 355,050 | 100.0 | 3,566 | 368,015 | 100.0 | 3,758 | Yes |
| Drove alone | 271,350 | 76.1 | 2,457 | 268,515 | 75.6 | 2,993 | 277,676 | 75.5 | 3,445 | Yes |
| 2-person Carpool | 38,415 | 10.8 | 998 | 31,809 | 9.0 | 1,927 | 33,762 | 9.2 | 1,848 | Yes |
| 3-or-more-person Carpool | 9,450 | 2.6 | 499 | 6,672 | 1.9 | 796 | 7,645 | 2.1 | 818 | Yes |
| Transit | 11,894 | 3.3 | 560 | 12,473 | 3.5 | 1,353 | 14,013 | 3.8 | 1,186 | Yes |
| Bike | 2,295 | 0.6 | 247 | 3,021 | 0.9 | 511 | 3,993 | 1.1 | 518 | Yes |
| Walked | 6,620 | 1.9 | 418 | 8,917 | 2.5 | 885 | 7,366 | 2.0 | 689 | No |
| Taxi, Motorcycle and Other means | 2,380 | 0.7 | 251 | 5,269 | 1.5 | 765 | 2,627 | 0.7 | 464 | No |
| Worked at Home | 14,280 | 4.0 | 613 | 18,374 | 5.2 | 1,273 | 20,933 | 5.7 | 1,214 | Yes |
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
