| Location | 2013 | 2014 | 2015 |
| Alabama | 598 | 723 | 736 |
| Alaska | 105 | 124 | 122 |
| Arizona | 1,222 | 1,211 | 1,274 |
| Arkansas | 319 | 356 | 392 |
| California | 4,452 | 4,521 | 4,659 |
| Colorado | 846 | 899 | 869 |
| Connecticut | 582 | 623 | 800 |
| Delaware | 166 | 189 | 198 |
| District of Columbia | 102 | 96 | 125 |
| Florida | 2,474 | 2,634 | 3,228 |
| Georgia | 1,098 | 1,206 | 1,302 |
| Hawaii | 158 | 157 | 169 |
| Idaho | 207 | 212 | 218 |
| Illinois | 1,579 | 1,705 | 1,835 |
| Indiana | 1,064 | 1,172 | 1,245 |
| Iowa | 275 | 264 | 309 |
| Kansas | 331 | 332 | 329 |
| Kentucky | 1,019 | 1,077 | 1,273 |
| Louisiana | 809 | 777 | 861 |
| Maine | 174 | 216 | 269 |
| Maryland | 892 | 1,070 | 1,285 |
| Massachusetts | 1,081 | 1,289 | 1,724 |
| Michigan | 1,553 | 1,762 | 1,980 |
| Minnesota | 523 | 517 | 581 |
| Mississippi | 316 | 336 | 351 |
| Missouri | 1,025 | 1,067 | 1,066 |
| Montana | 137 | 125 | 138 |
| Nebraska | 117 | 125 | 126 |
| Nevada | 614 | 545 | 619 |
| New Hampshire | 203 | 334 | 422 |
| New Jersey | 1,294 | 1,253 | 1,454 |
| New Mexico | 458 | 547 | 501 |
| New York | 2,309 | 2,300 | 2,754 |
| North Carolina | 1,259 | 1,358 | 1,567 |
| North Dakota | 20 | 43 | 61 |
| Ohio | 2,347 | 2,744 | 3,310 |
| Oklahoma | 790 | 777 | 725 |
| Oregon | 455 | 522 | 505 |
| Pennsylvania | 2,426 | 2,732 | 3,264 |
| Rhode Island | 241 | 247 | 310 |
| South Carolina | 620 | 701 | 761 |
| South Dakota | 55 | 63 | 65 |
| Tennessee | 1,187 | 1,269 | 1,457 |
| Texas | 2,446 | 2,601 | 2,588 |
| Utah | 594 | 603 | 646 |
| Vermont | 93 | 83 | 99 |
| Virginia | 854 | 980 | 1,039 |
| Washington | 969 | 979 | 1,094 |
| West Virginia | 570 | 627 | 725 |
| Wisconsin | 856 | 853 | 878 |
| Wyoming | 98 | 109 | 96 |
