9. Subject as hereinafter provided, resettlement compensation shall be payable only in respect of the period of thirteen weeks next succeeding the week in which the person to whom it is payable lost the employment in respect of which the compensation is payable or, in the case of a person who has at the date of losing that employment attained the age of forty-five years, the said thirteen weeks extended by one additional week for every year by which his age then exceeds the age of forty-five years, subject to a maximum addition of thirteen such weeks.