Message-ID: <CACexUkuwvkkwp4ANkg18H92ZO0EYKTkV+K4rHGZ5B_SPOAUa7w@mail.gmail.com>
Date: 2013-02-27T03:17:46Z
From: Zjoanna
Subject: cumulative sum by group and under some criteria
In-Reply-To: <1361932430.14958.YahooMailNeo@web142602.mail.bf1.yahoo.com>
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