I found that although yesterday's data matched other reported sources for advancing volume, data for the older dates did NOT match. My sources for spot
checking the data are these 2 sites for 02-April-2009:
The website was using Integer type to store volume. The problem is that if that integer cannot contain values higher than (2147483647). This is why you see a lot of (2147483647). However, it appears that the website no longer uses Integer (You can see that now there are values higher than 2147483647).
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