gsep Group Separator
In a number, the symbol (typically either a space or a comma) to delimit the groups within the number. For example, in “2,238,543.24”, the comma “,” is the group separator.
OPTIONAL on element: <num>
|Text, numbers, or special characters||Typically a comma or a space, to indicate what the separator is for the given number.|
|Restriction||This is an optional attribute; there is no default.|