World health organisation
1. The World Health Organization (WHO) compiles data about immunization levels worldwide. The file named âmeasles.txtâ contains data about the level of measles vaccinations in various countries over time. Each line of the file contains the following fields, where there is one space between fields: Country (50 characters) Income Level (6 characters) Percent Vaccinated (3 characters) Region (25 characters) Year (4 characters) The âCountryâ field contains the name of the country. The âIncome Levelâ field identifies the category assigned to that country by the World Bank: WB_LI low income WB_LMI lower middle income WB_UMI upper middle income WB_HI high income The âPercent Vaccinatedâ field contains an integer number representing the percentage of children in that country who have received measles vaccine by the age of one. The âRegionâ field identifies the region assigned to that country by WHO.