You are offering a measure of bar visitors, not tourist numbers.
We already know that much of the sex trade is on line these days and the sex tourists no longer need to visit the bars as often.
So how could we conclude, with any certainty that bar visitors are a reliable measure of sex tourist numbers ?
In principle, it's like counting horse drawn carriage traffic as a measure of economic activity. It worked until people no longer needed horse drawn carriages.
Next, you're probably going to remind me about all the bar closures in Sunee Plaza.
I just fished out a map from 2007 and counted 34 bars in Sunee Plaza & it's now 3. Or if we're really generous, 5. Admittedly of low quality now.
However, in the same time, the number of bars in Jomtien has gone from 7 to 36. Roughly offsetting the decline in Sunee. In an era when visitors don't need the bars to get sex. And total visitor numbers have only just recovered from daft pandemic policies.
Also, I remember going into plenty of bars in Sunee and seeing few customers. That's not a new thing either.
Unless of course, you're thinking of a comparison from 20~30 years ago, when I have no reference.