yogi_Extract Totals Of A Range Of Columns And Present Results By Year And Month Based On Dates In Column 1

Yogi Anand, D.Eng, P.E.       Google Spreadsheet    Post  #589    Jun 11, 2012     www.energyefficientbuild.com.

This blog posts is for extending the solution where I had computed and posted the totals by Month in my following blog post:
http://yogi--anand-consulting.blogspot.com/2012/06/yogiextract-totals-of-range-of-columns.html
In this solution, I compute and post the totals by Year and Month.