| Numerical Recipes in C Recent countries visiting this post |  |
 | 139 | United States |
 | 32 | |
 | 17 | India |
 | 15 | Germany |
 | 13 | United Kingdom |
 | 11 | France |
 | 10 | Canada |
 | 9 | Romania |
 | 9 | China |
 | 8 | Turkey |
 | 7 | Japan |
 | 6 | Spain |
 | 6 | Russian Federation |
 | 5 | Korea, Republic of |
 | 5 | Norway |
 | 5 | Pakistan |
 | 4 | Iran, Islamic Republic of |
 | 4 | Poland |
 | 4 | Switzerland |
 | 4 | Australia |
 | 3 | Italy |
 | 3 | Denmark |
 | 3 | Greece |
 | 3 | Austria |
 | 3 | Mexico |
 | 2 | Ukraine |
 | 2 | New Zealand |
 | 2 | Belgium |
 | 2 | Sweden |
 | 2 | Malaysia |
 | 1 | Slovenia |
 | 1 | Morocco |
 | 1 | Czech Republic |
 | 1 | Slovakia |
 | 1 | Brazil |
 | 1 | Philippines |
 | 1 | Hong Kong |
 | 1 | Europe |
 | 1 | Lithuania |
 | 1 | Kenya |
 | 1 | Nepal |
 | 1 | Croatia |
 | 1 | Bulgaria |
 | 1 | Netherlands |
 | 1 | Indonesia |
 | 1 | Israel |
 | 1 | Cameroon |
 | 1 | Serbia |
 | 1 | Portugal |
 | 1 | Ethiopia |
 | 1 | Faroe Islands |
 | 1 | Hungary |