Can I use Quantile Regression Model for a one year, say 2018 cross-sectional data on students results?

#1
Hey,Majority papers I have come across on Quantile Regression used either two different time periods (i.e. 1999 and 2000) or more different time periods for estimation purposes.My data is only a year cross-sectional; therefore, I am thinking whether Qreg is still applicable.Please make some recommendations where possible.

Joe