If you assume a reliability model, you can extract them from the data set that you have. 

Dear Rivalino,

Thank you very much.

I want to calculate reliability indices like ENS, SAIFI and ....

but I do not have reliability data for IEEE 34 buses (lambda, miu and number of costumers for each load point) to do that.

Where can I use this data? in which paper?

another question,

Will the data (lambda and miu) change if I use some DGs in this power system?

Best Regards.

Dear Ihsen

I have IEEE 34 bus LF data not more!!

How?