T5 and T12 lamp shipments improved by 9.9% and 9.4%, respectively, on a quarterly basis (q/q) during 2013Q4. Shipments of T8 lamps contracted 2.1% q/q. Nevertheless, calendar year (CY) 2013 showed the index advancing 9.4% on an annual basis. The index for T5 lamps also registered a gain during CY2013, besting CY 2012 by 9%. [...]