Of course, that could certainly be completely incorrect. It seems to me, from casual observation, that the rate of rocket launches is increasing very quickly. We seem to be getting better at it.
The economies just don't scale. It costs a few thousand dollars to fly a transcontinental flight on a 777, and passengers don't have to be trained in all types of contingency situations like astronauts do. The cost for a single Shuttle launch used to be an eight-figure sum.
Someday getting to space will be as simple as a transcontinental flight. Unfortunately, rockets aren't the way we're going to get there.
The numbers say otherwise:
There's no legend on that table; it took me a while to figure out that it's Launches and Failures.