NOTES:

Each colored ring of the five discs represents a country where each disc measures the quantity of meat production (first at the bottom), agricultural land (second), taxation (third), barley production (forth) and coffee production (fifth at the top). The countries from center to the edge are as follows: United States, Japen, Germany, China, UK, France, Italy, Canada, Spain, Brazil, Russian Fed., India, South Korea, Mexico and Australia. 

Each crescent moon represents a value.  Full moons equal a value with five at the hundred-digit space, crescents coming from the left represent a declining value and crescents coming from the right side represent an increasing value from five hundred.  Each shift in crescents represents a shift from the hundred-digit space with each row representing a year and each column representing a month.

Sources:

"The World Factbook" Central Intelligence Agency. Dec. 2009. <https://www.cia.gov/library/publications/the-world-factbook/>

"Atmospheric CO2 Concentrations (ppmv) Derived from in Situ Air Samples Collected at Mauna Loa Observatory, Hawaii." C.D, Keeling and T.P. Whorf, and the Carbon Dioxide Research Group Scripps Instituion of Oceanography (SIO) University of Cal, June 2004. Mar. 2009. <http://cdiac.ornl.gov/ftp/ndp001/maunaloa.co2>