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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 | 848,350 | 100.0 | 3,229 | 1,066,016 | 100.0 | 5,960 | 1,077,053 | 100.0 | 5,661 | Yes |
| Drove alone | 645,790 | 76.1 | 2,927 | 819,754 | 76.9 | 7,320 | 850,209 | 78.9 | 6,666 | Yes |
| 2-person Carpool | 85,730 | 10.1 | 1,170 | 95,815 | 9.0 | 3,489 | 88,971 | 8.3 | 4,003 | No |
| 3-or-more-person Carpool | 39,415 | 4.6 | 799 | 49,794 | 4.7 | 2,642 | 40,146 | 3.7 | 3,085 | No |
| Transit | 27,755 | 3.3 | 671 | 28,125 | 2.6 | 1,672 | 27,371 | 2.5 | 2,036 | No |
| Bike | 4,190 | 0.5 | 262 | 4,423 | 0.4 | 886 | 4,355 | 0.4 | 915 | No |
| Walked | 15,550 | 1.8 | 503 | 17,114 | 1.6 | 1,583 | 15,515 | 1.4 | 1,518 | No |
| Taxi, Motorcycle and Other means | 12,455 | 1.5 | 451 | 19,379 | 1.8 | 1,952 | 21,797 | 2.0 | 1,982 | Yes |
| Worked at Home | 17,460 | 2.1 | 533 | 31,612 | 3.0 | 1,653 | 28,689 | 2.7 | 1,636 | 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 | 667,245 | 100.0 | 2,963 | 808,357 | 100.0 | 6,540 | 839,433 | 100.0 | 6,811 | Yes |
| Drove alone | 502,115 | 75.3 | 2,647 | 629,112 | 77.8 | 6,379 | 662,935 | 79.0 | 6,332 | Yes |
| 2-person Carpool | 76,045 | 11.4 | 1,103 | 74,142 | 9.2 | 2,516 | 73,309 | 8.7 | 3,777 | No |
| 3-or-more-person Carpool | 20,665 | 3.1 | 580 | 17,031 | 2.1 | 1,230 | 17,126 | 2.0 | 1,489 | Yes |
| Transit | 32,760 | 4.9 | 729 | 31,959 | 4.0 | 2,035 | 29,420 | 3.5 | 1,896 | Yes |
| Bike | 610 | 0.1 | 100 | 1,080 | 0.1 | 356 | 1,331 | 0.2 | 441 | Yes |
| Walked | 11,200 | 1.7 | 428 | 14,495 | 1.8 | 1,632 | 13,422 | 1.6 | 1,227 | Yes |
| Taxi, Motorcycle and Other means | 5,125 | 0.8 | 289 | 10,554 | 1.3 | 1,393 | 10,898 | 1.3 | 1,112 | Yes |
| Worked at Home | 18,735 | 2.8 | 552 | 29,984 | 3.7 | 1,797 | 30,992 | 3.7 | 1,680 | 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
