>>717634462Ophanimon is the latest Digimon in the "then" segment, so let's use her as the limit.
As of 2001 (the year Ophanimon was introduced), we had
>Angewomon>LadyDevimon>Lilimon>Rosemon>Mermaimon>Witchmon>Sakuyamon / Miko Mode / KuzuhamonThat was five years, now let's look at 2020-2025
>LovelyAngemon>Thetismon>Cendrillmon>Lamiamon>Medusamon>Queenbeemon>Amaterasumon>Ariemon>Rubeusdramon>YukinamonThat's 7 vs 10, and unlike the first set there were 3 years in the second set where not a single "waifumon" was introduced. Almost all of them are partner Digimon for female tamers.
I'm also being generous and combining the Sakuyamon variants.