Click here to see the SAS code.
Click here to see the example.

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As expected, the number of donations per day has been increasing over time,
indicating that DonorsChoose.org has been becoming more popular.

Also (somewhat surprising to me), there are noticeably fewer donations on the 
weekends (Saturday/Sunday) than on the weekdays.

And, as I expected, there was a little less activity during the summer months
(while many schools are on break).

And, a bit 'odd' - there was a week in June 2003 that had no donations at all
(perhaps donorschoose was closed that week?)
And also on 31Aug2008.


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