Page "Consumer price index" Paragraph 7

The coverage of the index may be limited.

Consumers ' expenditure abroad is usually excluded ; visitors ' expenditure within the country may be excluded in principle if not in practice ; the rural population may or may not be included ; certain groups such as the very rich or the very poor may be excluded.

Saving and investment are always excluded, though the prices paid for financial services provided by financial intermediaries may be included along with insurance.