Here is the amount added each year for DOGE, BTC and LTC:
     Dogecoin Bitcoin   Litecoin
2015   5.26%  10%   33.33%
2016     5%    9.09%   12.5%
2017   4.76%  4.1%   11.11%
2018   4.54%   4%           10%
2019   4.35%  3.85%   9.09%
2020   4.2%     3.7%   4.1%