Is there a study that shows what percentage of homes sold or for sell is staged in the Dallas, Fort Worth are?

Thank you for your help in advance

Not likely.  However, there have been any number of article written about the benefits of staging

As an Accredited Staging Professional, ASP, and a Realtor, the stats are 90% of all professionally staged homes receive an accepted offer within 11-15 days for 15-17% above listing price. Sellers tend to receive over 500% ROI. Obviously, every property is a little different. Our market moves fast. If a home is priced well and staged, you will see offers on it much more quickly than the over priced non staged home. Please let me know if I can assist you with anything or answer anything more about home staging.