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[null,"VENTAS DE LOS ÚLTIMOS 8 AÑOS "]
[]
[null,"AÑO","VENTAS TIENDA A","VENTAS TIENDA B"]
[null,2008,2855,1500]
[null,2009,2951,1850]
[null,2010,2700,2500]
[null,2011,3500,2780]
[null,2012,3650,3200]
[null,2013,3950,3530]
[null,2014,3720,3750]
[null,2015,4235,3890]
[null,2016,4657,4350]
[null,2017,4836,4670]
[null,2018,5000,4800]