CR XI and charts -newb question within

Question

Hi All,
Great website and resource!  I'm a CR newbie and need help with charts.  I'll be using CR to develop single page summary sheets that contain only charts and cross-tabs.  The data is identified by dates that range from 2002 to 2008, and certain charts will show data from certain time range. 
Here is a theoretical sample:
Date   Sales (units)
1/01/02      5
1/02/03      4
1/03/04      5
1/04/05      1
1/05/06      4
1/04/06      5
1/03/07      2
1/04/07      1
1/05/08      5
1/11/08      2
3/04/09      6
If I want a bar chart that plots all the sales from a certain year, how do I go about doing that? formula? groups?
If I want a bar chart that plots cumulative sales from 2002 to 2008, how do I go about doing that?
please help!!
Thank You in advance,
Frank

Answer 1

Hi Raghavendra,
Thank you for the great and prompt response!! To further clarify, on my first question, if I only want to display the sales of 2008, and not every year, how do I do that?
New question: If i wanted to track the occurrences of sales, how would I do that?
Using the same theoratical example:
Date
1/01/02
1/02/03
1/03/04
1/04/05
1/05/06
1/04/06
1/03/07
1/04/07
1/05/08
1/11/08
3/04/09
I want to plot on a bar graph that in the month of January, 2007, there were 2 occurrences of sales, and in the month of January, 2008 there were 2 occurences of sales.  How would I do that? 
Thank You very much!!
Frank