Description Usage Format References
This data shows the efficiency improvement 1920 - 1987.
1 |
dataframe with two variables:
year
Kilowatt.hours per pound of coal
J. P. Martino, Technological forecasting for decision making. McGraw-Hill, Inc., 1993.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.