Historical data by the looks of it: https://www.canada.ca/content/dam/ircc/documents/json/ee_rounds_123_en.json, some are set to 0 though so idkCould be anything between 502 to 505 provided not a drastic number of applicants are added in the next two weeks who are above 500.
To format the data:
https://chrome.google.com/webstore/detail/json-formatter/bcjindcccaagfpapjjmafapmmgkkhgoa?hl=en
Seems like the delta is 1k~1.8k applicants