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Overall, illiteracy has greatly decreased in recent years.
Illiteracy and the percentage of populations without any schooling have decreased in the past several decades. For example, the percentage of population without any schooling decreased from 36% in 1960 to 25% in 2000.
Among developing countries, illiteracy and percentages without schooling in 2000 stood at about half the 1970 figures. Among developed countries, illiteracy rates decreased from 6 percent to 1 percent, and percentages without schooling decreased from 5 to 2.
Illiteracy rates in less-developed countries (LDCs) surpassed those of more developed countries (MDCs) by a factor of 10 in 1970, and by a factor of about 20 in 2000. Illiteracy decreased greatly in LDCs, and virtually disappeared in MDCs. Percentages without any schooling showed similar patterns.
Percentages of the population with no schooling varied greatly among LDCs in 2000, from less than 10 percent to over 65 percent. MDCs had much less variation, ranging from less than 2 percent to 17 percent.