semana,cobro_base_eur,cobro_retrasado_eur,pago_regular_eur,pago_extra_eur,saldo_base_eur,saldo_retrasado_eur
1,0,0,1000,0,3000,3000
2,0,0,1000,0,2000,2000
3,8000,0,1000,0,9000,1000
4,0,0,1000,4500,3500,-4500
5,0,8000,1000,0,2500,2500
6,0,0,1000,0,1500,1500
7,0,0,1000,0,500,500
8,0,0,1000,0,-500,-500