If the veteran has a disability rated as permanent and total and (1) has additional disability or disabilities independently ratable at 60 per centum or more, or (2) by reason of a disability or disabilities, is permanently housebound but does not qualify for pension at the aid and attendance rate provided by subsection (d) of this section, the annual rate of pension payable to the veteran under subsection (b) of this section shall be $14,457 and the annual rate of pension payable to the veteran under subsection (c) of this section shall be $18,120. If such veteran has two or more family members, as described in subsection (c) of this section, the annual rate of pension shall be increased by $2,020 for each such family member in excess of one. The rate payable shall be reduced by the amount of the veteran’s annual income and, subject to subsection (h)(1) of this section, the annual income of such family members.