This is one of 20 regular and a dozen periodic chart panels taken as a sample from the final issue -- December 1979 -- of the initial series of IEA Pocket Charts. The compact and analytically advanced economic charts feature the following analytical features:

1. "Flat horizontal" presentation, as growth rates or ratios to GDP -- (or, as in this case, to Capacity-GNP -- add 2.8 for approximate % of GNP during 1977-78) to facilitate comparisons of different time periods and series
2. Fluctuations shaded to "normal" lines -- made possible by such presentation
3. Smoothing -- quarterly centered moving averages to eliminate "zig-zag noise"
4. Economic conditions displayed for context as vertical bands or lines (see Economic Fluctuations Viewed in Growth Perspective for definitions of these terms), clearly illustrated in chart Panel 1:
   • recessions by light shading
   • periods of stagnation by stippling
   • absolute "contractions" (as defined by the National Bureau of Economic Research (NBER)) by dashed lines