Chronological Line Graphs/reporting where X-axis should be calendar

[GisMo]

I'm creating a reporting section for sales. I'm charting dollar value of sales on a weekly/monthly basis. To accomplish this, I have a list-view layout with sub summary parts grouped by week and a chart in the header which uses the sorted data. The reporting/charts is working as expected, but for weeks where there are no sales, there obviously no data. When I use a line graph, it doesn't necessarily show accurate chronological history. For instance, If I generate a monthly report from January to May and there were zero sales in February, I want to have February item along the x-axis with a zero value. How can I achieve this? I want a calendar as my x-axis values not the dates from my sales tables. 

 

Thanks

[GisMo]

I also noticed this thread below which gave me some ideas: http://fmforums.com/forum/topic/85099-including-x-values-with-0-data/

 

I sort of solved it. Using chart with delimited data from two Global Fields. I have a script that loops though the week in a linear fashion and sets the X-values along the way and searches for records that occurred during that week. I grab the summary field with the total sales value for the found set and then move on to the next week. Seems pretty simple.