What is the calculation method for the deferred payment schedule of Diya over three years?

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Blood money, whether for a life or a limb (such as severing the nose, ears, or male/female organs), is divided over three years, with one-third due at the end of each year. If the required amount is less than the full Diya, the distribution follows specific rules: If it is one-third of the Diya (like the Diya for a single tooth or a deep stab wound), it is due at the end of the first year, as the 'Aqilah (the liable party) does not pay anything immediately. If it is one-half or two-thirds of the Diya (like the Diya for a hand or both nostrils), one-third is due at the end of the first year, and the remainder at the end of the second year. If the amount exceeds two-thirds of the Diya, two-thirds is paid over the first two years, and the balance at the end of the third year. If the injury results in a loss of a sense, such as hearing or sight, one-third is due each year, following the logic that if the Diya was less than full Diya, the annual payment would not be less than one-third, so it should not exceed one-third when the total liability is greater.