The line bar chart illustrates the differences in weekly income across eight selected categories over two years: 1968 and 2018, respectively. The categories include food, housing, fuel and power, clothing and footware, h
The given chart illustrates the proportion of viewers and listeners during the day and night among individuals aged over 4 years during the last quarter of 1992.
The chart displays data on science qualifications of people in Malaysia and Singapore. It is clear that the majority of people don't have qualifications in science and the higher the science qualification is, the fewer p
The graph illustrates the number of school-boys in developing countries and developed countries with the boy and girl engaged in different levels of education in 1990 and 1998 and the target of these countries.
The maps show a plan of a city in 1950 and the present. In 1950, the population was 20,000, and now it is 200,000. Many changes happened during this time.