169 Since 1929, manufacturing and durable goods output have increased more rapidly than production as a whole, and increases in machinery production have been still greater, as the data in Tables 10, 11, and 12 indicate. The increase in national income originating in the machine-making industry since 1929 has been almost twice that of all industries taken together. TABLE 10 GROSS NATIONAL PRODUCT BY TYPE OF PRODUCT, 1929 and i960 (Billions of Current Dollars) 1929 i960 GNP Percentage GNP Percentage GNP Total Goods GNP Total Goods Goods Output $56.1 5b% #259.6 51.5$ Durable Goods 17.5 16 31$ 99-5 19.7 38. b