Graph of planet.osm Node count over time?

Hello! :smiley:

Just to monitor progress of OSM development, it would be great to see a graph of how many Nodes are present in the planet.osm file over time… so we could see if the project is speeding up, slowing down or what. Also, if an estimate of how many nodes would be required to map the roads of the whole planet could be formed, we could see roughly when that moment might arrive.

Anyone attempted anything like this?