codigo,amplitud
 AAZR,    1.89
 ACOY,    0.26
 AGRH,    0.26
 HCPD,    0.43
 LBTN,    0.32
 PLRL,    0.33
 SCAS,    0.25
 SCGH,    0.35
 SLMA,    1.04
 SPCH,    0.26