I think census data would be a big source. As for "technological growth": this tool would not treat data in that manner, per se. It doesn't have in its databases a column labelled "technological growth". In its database it uses hard data (how many homes have tvs for a given year, who has internet out of the total population, what ruling party was in power, population demographics, who was president, how many cars did people own, how many people rented vs owned, what was the GPO of a given economy for a given year, etc) and only when you query for certain trends does it export those data points and prettifies it into a visual trend, much like the data sheet for an Excel chart does.
Hmm, the question there would be: how do you decide which things are related to "technological growth"? Are humans manually tagging different data series as related to those things?
