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42 zettabytes is about 300,000,000 times as much as The IRS Compliance Database.
In other words, the amount of The IRS Compliance Database is 0.00000000330 times that amount.
(a.k.a. Internal Revenue Service) (2006 figures)
The United States Internal Revenue Service's compliance database holds more than 0.000000140 zettabytes of data on tax returns and other records. Each year of tax records occupies between 0.0000000160 zettabytes.
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