The surveys cover a twenty-five-year period (1990-2015).
Quote from the website, canadianuforeport.com:
“Since 1989, UFOlogy Research of Manitoba has solicited sightings data from active Canadian researchers. This data is annually compiled into the ‘Canadian UFO Survey.’ The survey is made publicly available in an attempt to promote the dissemination of information across the field of ufology. This page contains many of the surveys, as well as the data.”
Map of Canada (canada-maps.org)