| California | 21.29 |
| Texas | 9.18 |
| New York | 7.29 |
| Pennsylvania | 6.55 |
| Illinois | 5.91 |
| Michigan | 4.41 |
| Arizona | 3.31 |
| Colorado | 3.22 |
| Washington | 3.21 |
| Virginia | 2.98 |
| Maryland | 2.60 |
| Wisconsin | 2.48 |
| Connecticut | 2.29 |
| Massachusetts | 1.80 |
| Missouri | 1.76 |
| South Carolina | 1.72 |
| New Hampshire | 1.72 |
| New Jersey | 1.70 |
| Georgia | 1.40 |
| Alabama | 1.16 |
| Maine | 1.14 |
| District of Columbia | 0.99 |
| Florida | 0.99 |
| Ohio | 0.96 |
| Oklahoma | 0.86 |
| Utah | 0.71 |
| North Carolina | 0.68 |
| New Mexico | 0.66 |
| Vermont | 0.63 |
| Indiana | 0.63 |
| North Dakota | 0.62 |
| Hawaii | 0.61 |
| West Virginia | 0.52 |
| Puerto Rico | 0.49 |
| Nebraska | 0.40 |
| Oregon | 0.37 |
| Minnesota | 0.34 |
| Tennessee | 0.32 |
| Rhode Island | 0.28 |
| Louisiana | 0.26 |
| Other | 1.57 |