situation_id,scen_1_need,scen_1_endowment,scen_2_need,scen_2_endowment
1,1000,0,1000,200
2,1000,200,1000,400
3,1000,400,1000,600
4,1000,600,1000,800
5,1000,800,1000,1000
6,1000,1000,1000,1200
7,1000,1200,1000,1400
8,1000,1400,1000,1600
9,1000,1600,1000,1800
10,1000,1800,1000,2000