In 1999, delegations comprised of 373 international dignitaries representing 30 countries made official visits to the California Senate. The countries, ranked by number of visitors, were as follows: | |||
| COUNTRY | # VISITORS | COUNTRY | # VISITORS |
| CHINA | 59 | INDONESIA | 6 |
| SOUTH KOREA | 42 | ITALY | 6 |
| GERMANY | 37 | NEW ZEALAND | 5 |
| EGYPT | 34 | PERU | 5 |
| FRANCE | 20 | HONDURAS | 4 |
| NORWAY | 20 | PAPUA NEW GUINEA | 4 |
| PORTUGAL | 17 | AUSTRIA | 3 |
| MEXICO | 16 | AUSTRALIA | 2 |
| JAPAN | 15 | DOMINICAN REPUBLIC | 2 |
| UKRAINE | 15 | LITHUANIA | 2 |
| SINGAPORE | 14 | TUNISIA | 2 |
| RUSSIA | 13 | BOSNIA-HERZEGOVINA | 1 |
| MONGOLIA | 10 | INDIA | 1 |
| TURKEY | 10 | THAILAND | 1 |
| HUNGARY | 6 | UNITED KINGDOM | 1 |
| The delegations studied a wide range of subjects, which are ranked below according to the number of visitors who studied them: | |||
| SUBJECT | # VISITORS | SUBJECT | # VISITORS |
| protocol/international relations | 157 | immigration | 26 |
| international trade | 91 | death penalty | 17 |
| government/legislative process | 84 | gender | 13 |
| agriculture | 41 | social/health issues | 12 |
| education | 37 | budget/finance | 11 |
| energy/environment | 31 | public safety | 6 |
| judiciary | 27 | transportation | 5 |
Note: As some delegations studied more than one subject, the subject area numbers will not coincide with the number of visitors.