My motivation to gain a lot of referrals decreased..

If not a secret, how much BTC do you get each day? (Rolls+referrals+daily interest)
Here the BTC earnings of the last few days in excel: 
Here the Stats so far after nearly 2 years Membership now:
Wow! You have a serious approach to this game)
Thank you very much!
Can I ask you about referrals? Did you gain them from internet mostly? Are there your relatives, friends etc from real life also?