The analysis found a 98 percent correlation between the leaked data and the data held by Blue Toad.

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Subsequent detailed analysis of the IALS data showed a strong correlation in the United States between parental education and the literacy levels of youth.

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This means that the data which shows a negative correlation between stock performance and GDP, has less data in it, and its negative correlation is only roughly 24%, while the analysis which shows a positive correlation between stock returns and GDP has a correlation of 66%.

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An analysis comparing Wal-Mart Stores' (nyse: WMT - news - people ) same-store sales growth to consumer spending data dating back to January 2004, compiled by the Bureau of Economic Analysis, actually shows a negative correlation between the two.

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