There are dozens of variables you would really have to look at to get a clear picture. Are you comparing the exact same date/time of the year? I'm sure there are seasonal fluctuations. How many of the ads are actually active, are people just posting their ads in more cities at the same time (same number of guys just traveling more), etc. While Covid is still raging worldwide I'm sure there is a difference between 2023 and 2025 in how much people are ignoring it. I'm sure economic and political stuff like ICE is having an impact. ICE may be picking up some people and driving others away from their regular jobs for fear of raids, prison, deportation, etc. Some people might leave the country because of what is happening while others might be afraid to cross the border where many people are being abducted. There's a lot you'd really have to look at before drawing any conclusions.