Payement per stream for artists

[Joshtorrent]

Hi, not sure this is the right place for this kinnda question, it is about what artists gets per streams. 
I have looked around and some number pop out, like 0.0001 for free stream and between 0.002 and 0.004 for premieum users. My question is not about is this true or not, but juste wondering: 
I am about to get spotify for my wife, and myslef, that would be 2 accounts, so 20 if I get 2 premium membership and 15 if I get the premium family.
As an artist myslef, I listen to a lot of indi music, an I was wondering if artists get paid less from premium family membership, because it is much cheaper that an normal premium, or are they getting the same amount of money as long as it is a premium account, family or not. 
I don't minf paying a llittle extra fiver a month so artists I listen too get a decent share of the stream, but if it's the same then I'll just get a family membership. 
Thank you for your replies !