| California | 25.10 |
| New York | 9.78 |
| Massachusetts | 9.06 |
| Pennsylvania | 4.74 |
| Washington | 4.54 |
| Texas | 3.92 |
| Indiana | 3.92 |
| District of Columbia | 3.52 |
| Oregon | 3.00 |
| Florida | 2.66 |
| Connecticut | 2.52 |
| Virginia | 2.27 |
| Illinois | 2.03 |
| Utah | 2.03 |
| Michigan | 1.94 |
| Arizona | 1.88 |
| Missouri | 1.82 |
| New Jersey | 1.70 |
| New Hampshire | 1.61 |
| Colorado | 1.46 |
| Iowa | 1.11 |
| Ohio | 0.99 |
| Georgia | 0.90 |
| Wisconsin | 0.80 |
| Maryland | 0.78 |
| Alaska | 0.78 |
| Rhode Island | 0.76 |
| South Carolina | 0.61 |
| Idaho | 0.55 |
| Hawaii | 0.46 |
| Kentucky | 0.44 |
| Vermont | 0.42 |
| Minnesota | 0.42 |
| Kansas | 0.40 |
| Nebraska | 0.36 |
| North Dakota | 0.36 |
| Maine | 0.34 |