Date:         Thu, 2 Nov 2006 18:04:47 -0800
Reply-To:     gopilth@YAHOO.COM
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         gopilth@YAHOO.COM
Organization: http://groups.google.com
Subject:      calculating lowest one third of total population
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset="iso-8859-1"

Hi,
I have a sample data set as follows
id    points
1      512
2      512
3      618
4      620
5      620
6      625
7      650
8      651
9      700
10    701
and so on......
of these i need to get the subjects in  lowest one sixth of total
subjects based on points.can anyone please help me
Thank you,