custom indexing for lodd application

Greetings to nice community of semantic web life sciences,

I'm currently using a custom .json file that I created via a sparql 
query on dbpedia, which contains all drug and chemical compound names 
and drugbank ID's if exists, for indexing purposes. You know how deathly 
free text searching is in rdf graphs.

Anyway, my question is, how often does dbpedia get updated? I set 1 day 
interval for now; which, I assume, is pretty short.

Also, you can find the json file from here [1], (1,2 mb - 13013 records) 
if you need it some time.

Cheers

Umutcan

[1] https://raw.github.com/sumutcan/Pharmeshup/master/config/idx.json