Jan 17, 2014. Total revenue collected in FY2013/14 amounted to N$41.9bn, outperforming. 4,232.9. 69.8%. 14 Labour and Social Welfare. 1,811.7. 1,182.0. operational and administrative challenges, in both the internal and external. Feb 20, 2012. Historical Internal Revenue Manual (IRM) Microfilm. Inventory. 4232.9. Techniques Handbook for Specialized Industries- Financial Institution.