Hi! The 60.4% does not correspond to the number of users who fly MSFS “most of the time”, but is a total of all users who fly it at least infrequently. See this graph from page 62 in the report and the different color coding representing the contributions to the 60.4%.
Then, as a separate analysis on page 117-118 in the report…:
In the analysis above, the major desktop simulator software are represented by their respective
versions. As some respondents may be using multiple versions of the same desktop simulator
software, or may be transitioning between such versions, it could be relevant to group these desktop
simulators versions into one. In the following graph we have considered all positive use responses
(from “Infrequently” to “Most of the time”) for each simulator version by each respondent, and
grouped them into the same graph. This graph is more telling of the popularity of the simulator
software platform as such. In this analysis we have grouped Laminar Research X-Plane 10, 11 and
11.50; Lockheed Martin Prepar3d v1-5; and Microsoft Flight Simulator 2002, 2004/FS9, FSX, FSX
Steam. We have not grouped the latest Microsoft Flight Simulator 2020 with the previous versions
from Microsoft to be able to compare it with the others.
Please also keep in mind when comparing the numbers you mention that 1) some respondents may be new to flight simulation with the introduction of MSFS 2020 and hence did not “switch”, and 2) some respondents may have flown MSFS to some degree but have not yet considered it to be their “primary” simulator.
Regards,
Stephen
Navigraph