There are numerous different acne related statistics available. In order to determine how useful an acne statistics table is, it is important first to ascertain what kind of information can be gleaned from it, and how valid the information is - i.e. whether or not the statistics are based on unbiased research or whether the research was funded for any specific purpose and therefore perhaps a possible bias has been introduced - as could be the situation if a drug company had funded research when testing its skin products.
Acne statistics tables such as those compiled through the US Census Bureau are usually thought to be impartial, and can show a number of interesting trends about the people who usually suffer from acne. They can show the percentage of various age groups who have acne, which in turn can highlight the age where it’s most likely to be a problem and the age where it starts to become less of a problem. The statistics can show what percentage of acne sufferers is female and what percentage is male. They can even show a demographic spread which could be interesting if you wanted to know if acne was more of a problem in one part of the country/world than another - if this was the case, and then this would lead to questioning what environmental/cultural problems were responsible for this. Current information available from the US Census Bureau based on information collected in 2004 estimates that there were about 85% of American people in the 12-24 age group who had some form of acne during the data collection period for those statistics.
Other types of statistics that are available about acne include the hospitalization of people with acne - how many, how many days, reasons for hospitalization, etc - and the recording of family histories which have shown that there is a strong case for heredity being a contributor in determining who suffers from acne.