#tranche impotTotal taux
1	0	0
111276	0	0.1125
222550	12.50	0.1375
333825	27.80	0.3000
445098	61.20	0.3250
667648	133.55	0.5250
890197	250.40	0.5625
1112746	375.60	0.8000
1335294	553.65	0.8500
1669118	837.40	1.1250
3338235	2715.15	1.3500