Bluebulb Projects' The Measure of Things presents:
140 is about two-fifths the number of Manned Flights to Space
In other words, it's 0.4490 times the count of a Manned Flights to Space, and the count of a Manned Flights to Space is 2.230 times that amount.
(2016 figures) (flights with at least 80km altitude; US, Russia, the Soviet Union, and China)
