fecha hora, apertura, alto, bajo, cierre
2016.11.04 16:56,1.11386,1.11394,1.11383,1.11386
2016.11.04 16:57,1.11387,1.11389,1.11383,1.11386
2016.11.04 16:58,1.11387,1.11412,1.11385,1.11407
2016.11.04 16:59,1.11407,1.11408,1.11361,1.11378

([(1459388100, 29.799999237060547, 29.799999237060547, 29.799999237060547, 29.799999237060547, 148929.0, 450030016.0),
   (1459388400, 29.799999237060547, 29.979999542236328, 29.709999084472656, 29.920000076293945, 10395.0, 31069984.0)], dtype=[('tiempo', '<i4'), ('apertura', '<f4'), ('alto', '<f4'), ('bajo', '<f4'), ('cierre', '<f4')])