Full text
on or before the last day of each month in the year, an amount equal to 1/12 of its first instalment base for the year, or
on or before the last day of each month in the year, an amount equal to 1/12 of its first instalment base for the year, or
on or before the last day of each month in the year, an amount equal to 1/12 of its first instalment base for the year, or