The diagram contains data about the changes in spending habits of the population of the USA on multiple commodities and services over a 30-year span, from 1966 to 1996.
Overall,the pie chart illustrates information about several categories: food, cars, petrol, restaurants, furniture, computers, books.The most noticeable shifts have occurred in the categories of food and cars, as well as in the field of computers and books
It is clear that the ‘food’ sector represented the largest portion of expenses, it comprised just under half,whereas the ‘computers’ was undoubtedly the smallest, it was only one percent. ‘Cars’ comprised about a quarter of the proportion. ‘Petrol’ and ‘furniture’ showed almost the same percentage,nine and ten percent.In addition,parts ‘restaurants’ and ‘books’ also was similar, six and seven percent.
30 years later, we can notice significant changes in the proportion.The biggest change was with ‘car’ sector,it reached for almost the same percentage as the ‘food’ in 1966, which was 45%.Turning to the ‘food’,there was marked decline,it stood at less than a fifth,the same percentage had ‘restaurants’, it twofold to 14%. The ratio between the ‘furniture’ and ‘petrol’ categories has also become equal,by eight percent.The most noticeable changes is,expenditures on books showed downward trend and reached the smallest fraction (one percent).In contrast,’computers’ showed upward trend and achieve six per cent