Natural Logarithm in Microsoft Query
 

I have created the following SQL statements in Microsoft Query (11.5510.6408)
when trying to summarize data to include in an Excel Pivottable:

SELECT
log(1+.05*`Curr SP500, 94-04`.RTN52)
FROM `C:\Documents and Settings\DPW\My Documents\ABV2\Curr SP500`\`Curr
SP500, 94-04.csv` `Curr SP500, 94-04`
WHERE (`Curr SP500, 94-04`.`DECILE RS52`=1)

When I try to execute the query, I get an error "Invalid Procedure Call",
which I am guessing is associated with the "log" function, since the error
disappears when I remove that statement.

Is "log" not supported in Query? Other possible error in the above SQL?

Thanks,