ECSENOMICS Diffusion of Major Technologies during the Twentieth Century T200 Figure 27-2 100 Televisions Electric powe Hom 0 1920 194 1960 1970 1990 2000 Ye McGraw-Hilllrwin Source: Economic Report of the President, 2000McGraw-Hill/Irwin Copyright © 2001 The McGraw-Hill Companies, Inc. All rights reserved. Diffusion of Major Technologies during the Twentieth Century T-200 Figure 27-2 Source: Economic Report of the President, 2000