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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 | 1,200,965 | 100.0 | 4,107 | 1,357,941 | 100.0 | 4,517 | 1,338,803 | 100.0 | 5,343 | Yes |
| Drove alone | 899,540 | 74.9 | 3,723 | 993,462 | 73.2 | 5,809 | 992,553 | 74.1 | 6,410 | Yes |
| 2-person Carpool | 118,335 | 9.9 | 1,497 | 117,173 | 8.6 | 4,036 | 104,098 | 7.8 | 3,090 | Yes |
| 3-or-more-person Carpool | 34,430 | 2.9 | 816 | 34,422 | 2.5 | 2,329 | 33,268 | 2.5 | 1,833 | No |
| Transit | 35,715 | 3.0 | 831 | 45,302 | 3.3 | 2,447 | 41,433 | 3.1 | 2,127 | Yes |
| Bike | 13,370 | 1.1 | 510 | 22,616 | 1.7 | 2,146 | 23,630 | 1.8 | 1,618 | Yes |
| Walked | 37,450 | 3.1 | 850 | 40,832 | 3.0 | 1,954 | 44,717 | 3.3 | 2,188 | Yes |
| Taxi, Motorcycle and Other means | 12,675 | 1.1 | 496 | 22,233 | 1.6 | 1,365 | 18,686 | 1.4 | 1,200 | Yes |
| Worked at Home | 49,440 | 4.1 | 976 | 81,901 | 6.0 | 2,454 | 80,418 | 6.0 | 2,750 | 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 | 990,660 | 100.0 | 3,854 | 1,118,492 | 100.0 | 5,616 | 1,142,886 | 100.0 | 6,365 | Yes |
| Drove alone | 746,915 | 75.4 | 3,468 | 842,428 | 75.3 | 5,785 | 870,830 | 76.2 | 6,146 | Yes |
| 2-person Carpool | 92,425 | 9.3 | 1,327 | 89,085 | 8.0 | 3,199 | 84,727 | 7.4 | 3,195 | Yes |
| 3-or-more-person Carpool | 22,975 | 2.3 | 667 | 22,059 | 2.0 | 1,535 | 22,245 | 1.9 | 1,428 | No |
| Transit | 32,545 | 3.3 | 793 | 38,762 | 3.5 | 2,178 | 35,951 | 3.1 | 1,829 | Yes |
| Bike | 3,535 | 0.4 | 262 | 9,114 | 0.8 | 860 | 9,639 | 0.8 | 851 | Yes |
| Walked | 28,215 | 2.8 | 739 | 32,465 | 2.9 | 1,607 | 31,998 | 2.8 | 1,578 | Yes |
| Taxi, Motorcycle and Other means | 5,355 | 0.5 | 323 | 8,694 | 0.8 | 805 | 8,777 | 0.8 | 1,085 | Yes |
| Worked at Home | 58,690 | 5.9 | 1,062 | 75,885 | 6.8 | 2,366 | 78,719 | 6.9 | 2,332 | 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
