Dear Statalisters,
I would like to insert the missing years in a large multi-country five-year interval panel data so that the time-series component becomes yearly. The objective is to interpolate, at a later stage, yearly data for relevant variables. Here are, heuristically, samples of how my starting and target data look like:

Sample of the data [ATTACH=CONFIG]temp_12897_1545479787041_707[/ATTACH]

Target data

[ATTACH=CONFIG]temp_12898_1545479792367_869[/ATTACH]
I am using Stata 14.2. Any feedback would be much appreciated.

Thanks.

Imed.