Things must be a bit unusual in your neck of the woods. In Australia and in the countries I've visited Europe, there's typically 3 to 4 or more times the shelf space devoted to women's scents than what is given to the men's scents. That's usually a pretty good indication of the ratio of sales.
I think tourists wear lots of cologne where you live, simply because it is so utterly hot. They'd be somewhat worried about how they smelled if they weren't wearing it, because they'd be perspiring so much compared to where they come from.