This property defines the Unicodes which have numeric value as 40
Characters like ፵,㉋,㊵, etc. are listed under 40 Numeric Value.
18 Characters are present in 40 Numeric Value starting with the Unicode point U+1375 that represents the character ፵.
Currently, as per latest version 15.0.0, Unicode supports 150 number of Numeric Value. Here are a few examples - 0,1,1/10, etc.