3.2. "Contract segmentation method" means the method of dividing the period from issue to mandatory expiration of a policy into successive segments, with the length of each segment being defined as the period from the end of the prior segment (from policy inception, for the first segment) to the end of the latest policy year as determined below. All calculations are made using the 1980 CSO valuation tables, as defined in subsection 3.6 of this rule, or any other valuation mortality table adopted by the National Association of Insurance Commissioners (NAIC) after the effective date of this rule and promulgated by rule by the Commissioner for this purpose, and, if elected, the optional minimum mortality standard for deficiency reserves stipulated in subsection 4.2 of this rule. The length of a particular contract segment shall be set equal to the minimum of the value t for which Gt is greater than Rt (if Gt never exceeds Rt the segment length is deemed to be the number of years from the beginning of the segment to the mandatory expiration date of the policy), where Gt and Rt are defined as follows: Gt = Gpx+k+t / GPx+k+t-1
where:
x = original issue age;
k = the number of years from the date of issue to the beginning of the segment;
t = 1, 2, ...; t is reset to 1 at the beginning of each segment;
GPx+k+t-1 = Guaranteed gross premium per thousand of face amount for year t of the segment, ignoring policy fees only if level for the premium paying period of the policy.
Rt = qx+k+t / qx+k+t-1, However, Rt may be increased or decreased by one qx+k+t-1 percent in any policy year, at the company's option, but Rt shall not be less than one;
where:
x, k and t are as defined above, and
qx+k+t-1 = valuation mortality rate for deficiency reserves in policy year k+t but using the mortality of subdivision b of subsection 4.2 of this rule if subdivision c of subsection 4.2 of this rule is elected for deficiency reserves.
However, if GPx+k+t is greater than 0 and GPx+k+t-1 is equal to 0, Gt shall be deemed to be 1000. If GPx+k+t and GPx+k+t-1 are both equal to 0, Gt shall be deemed to be 0.