of 1994 amendment of this Code section, see 11 Ga. St. U.L. Rev. 204 (1994). employer’s experience while Any insurance company which voluntarily writes a policy for any employer which was self-insured under any provision of this chapter shall include such employer’s prior experience while self-insured to determine or have determined an experience modifier for such employer. (Code 1981, § 34-9-138, enacted by Ga. L. 1996, p. 919, § 1.)