| California | 20.79 |
| New York | 11.21 |
| Massachusetts | 6.62 |
| Washington | 4.63 |
| Illinois | 4.60 |
| Pennsylvania | 4.50 |
| Indiana | 4.31 |
| Connecticut | 3.03 |
| Michigan | 2.94 |
| Virginia | 2.90 |
| Texas | 2.89 |
| Arizona | 2.52 |
| District of Columbia | 2.38 |
| Missouri | 2.27 |
| New Jersey | 2.25 |
| Georgia | 2.17 |
| Florida | 2.17 |
| Oregon | 2.16 |
| Wisconsin | 1.85 |
| Colorado | 1.68 |
| Alabama | 1.63 |
| Ohio | 1.48 |
| New Hampshire | 1.29 |
| Utah | 1.22 |
| Maryland | 0.82 |
| Alaska | 0.78 |
| Iowa | 0.74 |
| North Dakota | 0.64 |
| South Carolina | 0.62 |
| Hawaii | 0.47 |
| Vermont | 0.43 |
| Minnesota | 0.42 |
| Kentucky | 0.41 |
| Maine | 0.36 |
| Nebraska | 0.35 |
| Idaho | 0.23 |
| Rhode Island | 0.15 |
| New Mexico | 0.12 |