This property defines the Unicodes which have half east asian width
Characters like ₩,｡,｢, etc. are listed under Half width East Asian Width.
123 Characters are present in Half width East Asian Width starting with the Unicode point U+20A9 that represents the character ₩.
Currently, as per latest version 15.0.0, Unicode supports 6 number of East Asian Width. Here are a few examples - Ambiguous,Full width,Half width, etc.