| Status | Country | % Correct |
|---|---|---|
| Party to NPT | France | 100%
|
| Party to NPT | Russia | 100%
|
| Party to NPT | United Kingdom | 100%
|
| Party to NPT | United States | 100%
|
| Party to NPT | China | 96%
|
| Non-party to NPT, declared | India | 96%
|
| Non-party to NPT, declared | North Korea | 96%
|
| Non-party to NPT, declared | Pakistan | 92%
|
| Non-party to NPT, undeclared | Israel | 88%
|
| Hosting American weapons | Turkey | 84%
|
| Hosting American weapons | Italy | 80%
|
| Hosting Russian weapons | Belarus | 76%
|
| Hosting American weapons | Germany | 76%
|
| Former possession | Ukraine | 72%
|
| Former possession | South Africa | 56%
|
| Former possession | Kazakhstan | 48%
|
| Hosting American weapons | Netherlands | 40%
|
| Hosting American weapons | Belgium | 36%
|