500 real USA likes in 10 weeks

I want a total of 500 new likes from REAL users to my Facebook page from USA only to be added at 50 per week, each week for 10 weeks.

For example, week 1: 50 new likes
Week 2: another 50 likes
Week 3: another 50 likes

And so forth, for 10 weeks, which gives me a total of 500 new likes since the start of the project.