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Message-ID: <CACexUku_Svdn=hsCpb6Syx_-j9Hh_63Jn6-2gyjPfzBkh003pA@mail.gmail.com>
Date: 2013-02-01T17:19:58Z
From: Zjoanna
Subject: cumulative sum by group and under some criteria
In-Reply-To: <1359656500094-4657196.post@n4.nabble.com>

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