To find this information, you could try:
* Searching for academic papers or reports: Many scientific organizations conduct research on wolf populations and publish their findings.
* Contacting conservation organizations: Groups like the World Wildlife Fund (WWF) or the International Union for Conservation of Nature (IUCN) often have data on endangered species like wolves.
* Consulting government wildlife agencies: The wildlife management agencies in countries with wolf populations (e.g., the United States Fish and Wildlife Service, Canadian Wildlife Service) may have estimates for their territories.
Remember, wolf populations are dynamic and constantly changing, so finding precise data for a specific date can be challenging.