graduating multi-decrement tables

I need to construct a multi-decrement table and I've had much success withestimation of crude rates, but now I feel that I need to graduate the rates as well as project certain rates forward for states that have not yet materialised in my data.

Is there anybody that can direct me to some good reading on the subject?

Best regards,

any guidance / stone thrown into the bush, would be very much appreciated...

(even telling me I'm posting on the wrong forum / using the wrong set of words)

Best regards and thanks in advance
Are you looking at panel data?

Also, you are using quite a bit of non-statistics jargon. I had to google multi-decrement table. It seems like this is panel data but I am not sure.