example of data
EURGBP,20010103,000100,0.6328,0.6328,0.6328,0.6328,4
EURGBP,20010103,000200,0.6328,0.6328,0.6327,0.6327,4
EURGBP,20010103,000300,0.6327,0.6327,0.6327,0.6327,4
EURGBP,20010103,000400,0.6327,0.6328,0.6327,0.6328,4
EURGBP,20010103,000500,0.6328,0.6328,0.6328,0.6328,4...