user runs report for current date he should get whole month data

Hi Experts,

I have a requirement where I need to display data something like this.This I was asked to do by creating a structure in rows to display day of the month.How can it be achieved?

I am clear about Netsales current year and netsales last year.But not sure how to get this day of the month.

I was asked to restrict calday with current day .

Day of the month           netsales current year              netsales last year

1

2

3

.

.

31

Thank you