On a monthly basis, the Retail Price Index of Selected Construction Materials in NCR continued to register a negative rate of -0.7 percent in May from -0.3 percent in April. This was due the declines in the indexes of carpentry materials at -1.0 percent in May from zero growth in April; plumbing materials, -0.3 percent from 0.2 percent; tinsmithry materials, -0.1 percent from zero growth and miscellaneous construction materials, -1.6 percent from -1.8 percent. On the other hand, higher monthly growth rates were seen in the indexes of electrical, masonry and painting materials and related compounds at 0.2 percent, 0.1 percent and 0.5 percent, respectively from their last month�s corresponding rates of -0.9 percent, zero growth and -0.2 percent.