NEMA's linear fluorescent lamp shipment indexes for 2015Q1 continued downward trend exhibited during calendar year 2014. As expected due to energy efficiency regulations, index for T12 lamps declined for fifth consecutive quarter on year-over-year basis, dropping by 39.5%. T8 shipments also posted double digit decline, decreasing by 21.7%. Shipments of T5 lamps fell more modestly, registering year-over-year decrease of 14.8%.