/*quarterly, seasonally adjusted, U.S. fixed investment (y1), change in business inventories (y2), 1947Q1-1972Q4; source: U.S. Department of Commerce, Bureau of Economic Analysis, The National Income and Product Accounts of the United States, 1929-1974 */ <1947 Q1> y1 y2 69.6 0.1 67.6 -0.9 69.5 -2.9 74.7 2.7 77.1 4.1 77.4 5.6 76.6 6.9 76.1 5.3 71.8 -0.3 68.9 -7.1 68.5 -2.5 70.6 -7.7 75.4 4.4 82.3 7.7 88.2 8.0 86.9 22.1 83.4 13.4 80.3 19.9 79.4 14.6 78.6 7.0 79.3 7.3 80.3 -2.7 75.3 5.4 80.6 7.2 83.9 3.9 84.2 5.1 84.4 1.9 83.8 -5.0 82.8 -3.4 84.1 -4.1 87.0 -2.7 88.5 1.5 92.1 5.9 96.1 8.0 98.3 7.8 98.8 9.2 96.6 7.5 97.4 5.5 97.6 4.9 96.6 5.4 96.2 2.5 95.3 2.9 96.4 3.7 94.9 -3.0 90.0 -6.8 87.2 -6.2 88.0 0.3 93.0 5.3 98.3 5.0 101.6 13.0 102.6 -0.4 101.4 8.2 104.9 13.5 101.8 4.9 98.8 3.0 98.6 -3.9 97.7 -3.8 99.2 1.9 101.3 6.6 104.6 6.7 106.1 10.6 109.9 9.2 111.1 8.0 110.1 4.7 110.7 7.6 116.0 7.0 118.5 9.3 122.0 7.1 124.0 6.1 124.0 8.0 124.9 7.3 126.4 7.9 133.4 13.4 137.9 10.6 140.1 12.4 143.8 8.8 147.5 13.5 146.2 17.8 145.0 15.1 139.7 20.5 136.4 14.6 139.6 7.5 141.1 12.2 145.5 13.8 148.9 6.3 148.9 11.8 150.7 9.2 155.0 7.6 159.1 9.8 158.4 12.2 158.1 13.4 154.3 6.8 151.8 2.9 150.0 4.8 150.4 6.3 149.5 3.3 154.3 7.9 158.4 10.0 162.1 5.0 166.0 3.7 174.3 4.8 176.1 10.1 178.2 12.1 186.7 10.8