| Country | Total |
| Cambodia (KH) | 6 |
| Cameroon (CM) | 32 |
| Canada (CA) | 48 |
| Cape Verde (CV) | 11 |
| Caribbean Netherlands (BQ) | _ |
| Cayman Islands (KY) | _ |
| Central African Republic (CF) | _ |
| Chad (TD) | 5 |
| Chile (CL) | 75 |
| China (CN) | 50 |
| Colombia (CO) | 175 |
| Comoros (KM) | _ |
| Congo (CG) | 1 |
| Congo, the Democratic Republic of the (CD) | 6 |
| Cook Islands (CK) | _ |
| Costa Rica (CR) | 57 |
| Côte D'ivoire (Ivory Coast) (CI) | 20 |
| Croatia (HR) | 33 |
| Cuba (CU) | 4 |
| Cyprus (CY) | 4 |
| Czech Republic (CZ) | 113 |
| Czechoslovakia (CS) | 72 |