This property defines approval of Symbols as Unicode in version 13.0 in 2020
Characters like ࢾ,ࢿ,ࣀ, etc. are listed under 13.0 Age.
5930 Characters are present in 13.0 Age starting with the Unicode point U+08BE that represents the character ࢾ.
Currently, as per latest version 15.0.0, Unicode supports 26 number of Age. Here are a few examples - 1.1,10.0,11.0, etc.