I am trying to draw a simple XY line chart using report designer. I am finding it difficult to give domain min and max values as well range min max values. my domain values are trailing 12months data in yyyymm format. For this I have 12 datapoints with max value of 200908 (current month) to 200809 (12months old). How do I give these values in min and max to get the chart correctly and also would like to know how do I give the interval, is there automated feature?
Can any one help me with this.

Thanks in advance