In addition to other funds provided for in this chapter, there shall be added to the allotment for each school district for each vocational teacher employed full time during the regular school term in a vocational education program approved by the State Department of Education the value of one-half (1/2) of the adequate education program salary schedule provided in Section 37-19-7, Mississippi Code of 1972, based on the type of certificate and number of years' teaching experience held by each approved vocational teacher plus one hundred percent (100%) of the applicable employer's rate for Social Security and State Retirement.