Ranges (intervals) in query

Dear Experts,

There is a requirement to design a Query with Graph where I want to show on X-Axis the value range from zero to ten (0-10), then ten to twenty (10-20) and so on. The intervals are not constant for example, after 10-20, next interval could be 20-25, and then 25-30,....... And, the "Number of Records" (which is a key-figure) should be summarised within these above intervals.

Kindly care to share your invaluable thoughts on how to achieve this.

Thanks,

Shalini.