Lag for Stats

How about an indicator that shows the days from the last data point of a statistical chart, such as PMI or any government state, to the current date. Showing the lag before the release of data. Just seems to me that in these difficult days that government may be fudging the numbers. Also holding back on the release of stats for public consumption. Maybe they release it to some, but hold back to providers like TV. I do not know. But I would like to be able to see if they do. Anyone out there want to take up the challenge to make such an indicator? Which may warn us when there is bad economic news on the horizon.