This property defines approval of Symbols as Unicode in version 8.0 in 2015
Characters like ࢳ,ࢴ,ࣣ, etc. are listed under 8.0 Age.
7716 Characters are present in 8.0 Age starting with the Unicode point U+08B3 that represents the character ࢳ.
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.