MACAO, Aug. 9 (Xinhua) -- The overall residential property price index in China's Macao Special Administrative Region (SAR) for second quarter increased by 1.7 percent over the previous period from March to May, the SAR's statistic service said on Thursday. The latest report issued by the Statistics and Census Service indicated that the indices for the Macao Peninsula (271.8), and Taipa and Coloane (258.2) rose by 1.9 percent and 0.5 percent respectively, adding the total index to 269.4. The index for existing residential units (290.2) grew by 1.8 percent from the previous period, while the one for pre-sale residential units (278.9) increased by 1.7 percent over the previous period. Analyzed by quarter, the overall residential property price index in the second quarter grew by 6.3 percent compared to the last quarter (253.4). The indices for existing residential units and pre-sale residential units rose by 8.4 percent and 3.3 percent respectively.