| State | Country | Continent |
|---|
| District of Columbia (21.9) | |
| Louisiana (11.2) | |
| Maryland (7.4) | |
| Mississippi (7.0) | |
| Missouri (7.0) | |
| New Mexico (6.9) | |
| Arizona (6.4) | |
| South Carolina (6.1) | |
| Nevada (5.9) | |
| Georgia (5.8) | |
| Michigan (5.7) | |
| Alabama (5.7) | |
| Tennessee (5.6) | |
| Illinois (5.5) | |
| Delaware (5.3) | |
| Florida (5.2) | |
| Oklahoma (5.2) | |
| | State | Country | Continent |
|---|
| Pennsylvania (5.2) | |
| North Carolina (5.0) | |
| Texas (5.0) | |
| California (4.9) | |
| Arkansas (4.7) | |
| Virginia (4.6) | |
| New York (4.5) | |
| Indiana (4.5) | |
| Alaska (4.4) | |
| Kentucky (4.3) | |
| New Jersey (4.2) | |
| Ohio (4.1)* | |
| Connecticut (3.6) | |
| Kansas (3.5) | |
| West Virginia (3.3) | |
| Massachusetts (3.2) | |
| Nebraska (3.0) | |
| | State | Country | Continent |
|---|
| Rhode Island (2.8) | |
| South Dakota (2.8) | |
| Wisconsin (2.7) | |
| Montana (2.6) | |
| Colorado (2.4) | |
| Oregon (2.4) | |
| Washington (2.3) | |
| Utah (1.9) | |
| Maine (1.8) | |
| Hawaii (1.8) | |
| Minnesota (1.8) | |
| North Dakota (1.5) | |
| Wyoming (1.4) | |
| Idaho (1.3) | |
| Iowa (1.3) | |
| Vermont (1.1) | |
| New Hampshire (1.0) | |
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US States
Countries of Europe
Countries of the World
