How to fill empty rows with a formula that decrease in value over time

[devalex]

Hello,

This is a sample from my data table:

Date	Profit	Loss
1/1/2011	100000	50000
2/1/2011
3/1/2011
4/1/2011
5/1/2011
6/1/2011
7/1/2011
8/1/2011
9/1/2011
10/1/2011
11/1/2011
12/1/2011
1/1/2012	90000	47000
2/1/2012
3/1/2012
4/1/2012
5/1/2012
6/1/2012
7/1/2012
8/1/2012
9/1/2012
10/1/2012
11/1/2012
12/1/2012
1/1/2013	80000	41000
2/1/2013
3/1/2013
4/1/2013
5/1/2013
6/1/2013
7/1/2013
8/1/2013
9/1/2013
10/1/2013
11/1/2013
12/1/2013
1/1/2014	70000	36000

What I am trying to do is fill the empty values of the remaining dates.

The value in the first month for each year is actually the total for the whole year. So, "100,000" profit is profit for the whole year. I am splitting this "100,000" into 12 months to get a prediction of profit by month. However I need assistance in filling all the remaining empty rows in that year so that they decrease over time and do not overlap with the following years first month.

By that I mean that the December month of the prior year should be greater than the first month of the next year. This is to prevent staggering graphics 

Thank you.

[aatalai]

@devalex I don't exactly follow but does this help?

[devalex]

So I'm trying to have the values decrease progressively by month. In the example you showed they are decreasing but only by year. I need them to decrease incrementally each month. No month should have the same value.