I think they’re including all FJ including 3rd and 4th generation (including American). Latest figures I can find are that the US operates 11 types and various European nations up to 19 - but that includes various Russian types such as Mig-21 and Mig-29 being phased out.
So, ignoring the Russsian types your list you can add Gripen, Mirage F1 and M2000, various F-4s and a handful of Italian AMX.