| Decade | State | % Correct |
|---|---|---|
| 1940s | Alaska | 100%
|
| 1890s | Arizona | 100%
|
| 1890s | Hawaii | 100%
|
| 1880s | Montana | 100%
|
| 1870s | New Mexico | 100%
|
| 1870s | Utah | 100%
|
| 1900s | Wyoming | 100%
|
| 1890s | Idaho | 98%
|
| 1860s | Nebraska | 98%
|
| 1930s | Nevada | 98%
|
| 1880s | North Dakota | 98%
|
| 1870s | Oklahoma | 98%
|
| 1870s | Oregon | 98%
|
| 1880s | South Dakota | 98%
|
| 1880s | Washington | 98%
|
| 1870s | Colorado | 95%
|