Pursuant to Section 5(a) of Republic Act No. 8291 otherwise known as “An Act Amending Presidential Decree No. 1147, as amended, Expanding and Increasing the Coverage and Benefits of the Government Services Insurance System, Instituting Reforms Therein and for Other Purposes: SECTION 5. Contributions. — (a) It shall be mandatory for the member and the employer to pay the monthly contributions specified in the following schedule: The above GSIS contribution rates and the basis for the computation is applicable for regular members covering the period from June 24, 1997 until December 31, 2002, pursuant to Section 11.1 of the Revised...