Datasets synthetically sampled for experimentation for the (multi-objective) Next Release Problem. aX datasets have cost values sampled from fibonacci scale. cX and dX datasets have cost values sampled from Function Points size of real datasets from the ISBSG 2015 dataset. Dataset #Stakeholders |R| #(ri⇒D⊆R) %(r_i⇒D⊆R) Avg|D| a1 5 50 18 0.360 2.222 a2 15 50 18 0.360 2.722 a3 5 200 74 0.370 1.946 a4 15 200 75 0.375 2.253 c1 15 50 20 0.400 2.400 c2 100 50 17 0.340 3.529 c3 15 200 69 0.345 1.942 c4 100 200 75 0.375 2.093 d1 15 200 88 0.440 3.352 d2 50 200 88 0.440 4.852 d3 15 300 131 0.437 3.771 d4 50 300 145 0.483 3.697