How to Download a Set List

I've this little request, I hope it is licit!

I'd like to gather LEGO set's data from brickset's database, obtaining a text file that contains the following data:
- Theme / Subtheme(s)
- Set number
- Set name
- Release Year

Example (tab-delimited):

Category Name Number Name Year Released
Castle > Knights Kingdom II 8781-1 The Castle of Morcia 2004
Bionicle > Rahaga 4869-1 Rahaga Pouks 2005
City > Police 7235-1 Police Motorcycle 2005
...

Is it possible to obtain this list?