This is now overshadowed by the restriction embodied in the obligation to issue earmarked government bonds for the pension funds. Why is this a restriction? •  Because the reduction of the debt burden is achieved by diminishing the budget deficit; only by doing that will it be possible to decrease borrowing by issuing bonds.
Since the obligation to issue earmarked bonds does not depend on the deficit financing needs but only on accrual by the pension funds, which has risen every year, limiting borrowing through issues of government bonds can be done only by reducing issues of tradable bonds.