1970. 1980. 1990. 2000. 2010. 2020. Year. 100. 1000. 200. 300. 400. 500. 600.
700. 800. 900. 2000. 3000. 4000. 5000. C ost In d e x. ,. I. 1970. 1980. 1990.
1970 5000
1980
1990
2000
2010
2020
Slopes correspond to inflation rates as indicated
4000
3000
20% 10%
20%
Nelson-Farrar Index
5%
2000
2% 0%
Cost Index, I
Marshall & Swift
1000 900 800 700
Chemical engineering plant cost index
600 500 400 (CE Index = 400 is the basis for cost data in this text)
300
200 US Bureau of Labor StatisticsHourly Earning Index. (Chemical & Allied Products)
100 1970
1980
1990
2000
2010
2020
Year
History of selected cost indices pertinent to chemical processing. All cost data in the text by Ulrich and Vasudevan1 are based on the Chemical Engineering Plant Cost Index Value of 400.
