Bluebulb Projects' The Measure of Things presents:
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Click the box above and enter your number, then make a unit selection if you wish, then click the "Show Me" button.

4,500 is about fourteen-and-a-half times the number of Manned Flights to Space.
In other words, the count of a Manned Flights to Space is 0.0694 times that amount.
(2016 figures) (flights with at least 80km altitude; US, Russia, the Soviet Union, and China)
There's more!
Click here to see how other things compare to 4,500...