Topic on Series talk:Crazy Taxi
It was actually part of the Dreamcast Collection https://en.wikipedia.org/wiki/Dreamcast_Collection
So, at least according to wikipedia, first release for PC was 2002, then at 2011 was the Dreamcast collection rerelease updated to work with more modern machines, then at 2014 Sega updated the Steam version of the Dreamcast collection while retail and from digital retailers selling DRM-free copy wasn't updated and is still the same as original 2011 release.
SOOOO, we are actually one article short from the list then. There should be Crazy Taxi (2011) there :p
E: I know it's stupid to have "Crazy Taxi (2011)" and "Crazy Taxi (Steam)" because they are essentially same release with other one updated, but because update was so large and only done for Steam, they can't be on same article.
http://pcgamingwiki.com/wiki/User_talk:Marioysikax#Sonic_Adventure_2473