If it's going to be the same teachers and faculty members from last year, and you want to save time on uploading the same data, you can go back to the last year's book account by going to My Projects. 

On the next window, it will show a display of the books you have access to. Select the book from last year; once opened, go to Manage > Manage uploads. Click on the download button next to the file you want to get a copy of. 

Confirm the details of your index, and if it's the right data, upload it as usual in the system. Please refer to this link when uploading people data.