total supply at the minute: 22,246,680 RBY
so max supply in (year):
2016 => 22,246,680 * 5% (total now) = 23,359,014
2017 => 23,359,014 * 5% (total 2016) = 24,526,964
2018..
2019..
2025 => 36,237,493 (after 10 years MAX - depends is all coins staked)..
I can PM you more calculation if you looking forward more then 10 years, let me know.
ps.correrct me if I am wrong, I only used windows calculator.
Appreciate it.