I'm a bit of a course junkie, you might say .... I have 1937 courses in my library for Links, 1498 unique courses with 358 unique real courses from around the world.
Links players have used the course designer (Arnold Palmer Course Designer or APCD) since September 2000, starting with Links 2001. There have been:
โฆ 900 courses released (including duplicates) for play with Links 2001 or newer;
โฆ 666 courses released (including duplicates) that can be played only with Links 2003 or newer; and
โฆ 371 courses released (including duplicates) than can be played only with Links 2003, v1.07 (i.e., "the mod').
As many as 123 courses were released in one month (January 2001, just 5 months after the APCD was available). With the exception of May 2015 and September 2015, at least one course has been released in every month since September 2000. Below is a bar chart showing the number of course releases (including duplicates), with the red line representing the cumulative total (% of total shown on the right axis).

I've not really played Links in the past 3-5 years, but I still collect the courses (for some unknown reason - probably habit!).