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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 | 321,340 | 100.0 | 1,984 | 329,845 | 100.0 | 2,763 | 320,828 | 100.0 | 2,423 | No |
| Drove alone | 250,950 | 78.1 | 1,817 | 252,489 | 76.5 | 2,326 | 247,500 | 77.1 | 2,544 | Yes |
| 2-person Carpool | 31,030 | 9.7 | 704 | 30,526 | 9.3 | 1,539 | 28,553 | 8.9 | 1,299 | Yes |
| 3-or-more-person Carpool | 7,370 | 2.3 | 346 | 7,809 | 2.4 | 859 | 6,377 | 2.0 | 649 | Yes |
| Transit | 1,865 | 0.6 | 175 | 2,108 | 0.6 | 430 | 2,064 | 0.6 | 425 | No |
| Bike | 1,130 | 0.4 | 136 | 2,051 | 0.6 | 368 | 2,306 | 0.7 | 448 | Yes |
| Walked | 13,410 | 4.2 | 466 | 14,501 | 4.4 | 1,283 | 12,311 | 3.8 | 990 | Yes |
| Taxi, Motorcycle and Other means | 3,615 | 1.1 | 243 | 5,341 | 1.6 | 770 | 5,067 | 1.6 | 662 | Yes |
| Worked at Home | 11,980 | 3.7 | 441 | 15,020 | 4.6 | 961 | 16,650 | 5.2 | 979 | 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 | 293,805 | 100.0 | 1,924 | 311,787 | 100.0 | 2,719 | 309,933 | 100.0 | 2,621 | Yes |
| Drove alone | 232,365 | 79.1 | 1,764 | 248,287 | 79.6 | 2,983 | 249,086 | 80.4 | 2,842 | Yes |
| 2-person Carpool | 25,675 | 8.7 | 642 | 23,986 | 7.7 | 1,325 | 23,219 | 7.5 | 1,441 | Yes |
| 3-or-more-person Carpool | 5,135 | 1.7 | 289 | 4,578 | 1.5 | 544 | 4,452 | 1.4 | 527 | Yes |
| Transit | 2,105 | 0.7 | 185 | 2,124 | 0.7 | 415 | 1,605 | 0.5 | 316 | Yes |
| Bike | 275 | 0.1 | 67 | 1,003 | 0.3 | 352 | 877 | 0.3 | 220 | Yes |
| Walked | 11,290 | 3.8 | 428 | 11,902 | 3.8 | 877 | 12,181 | 3.9 | 1,022 | No |
| Taxi, Motorcycle and Other means | 1,975 | 0.7 | 180 | 2,042 | 0.7 | 440 | 2,001 | 0.6 | 411 | No |
| Worked at Home | 14,980 | 5.1 | 492 | 17,865 | 5.7 | 944 | 16,512 | 5.3 | 940 | 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
