SAS University Edition can be downloaded for academic use and SAS On Demand can be used whenever you need to analyze data. You will get 5 GB of Storage space and can use most of the features from enterprise edition of latest version of SAS (9.4).
To access SAS on demand go to https://odamid.oda.sas.com/SASStudio/
Data SAS;
CurrentVersion = (3**2)+(4/10);
Run;