• Data reference period (Month)
• Place of residence (Portugal)

• RESIDENT POPULATION:  The persons who regardless of the fact that at the moment of observation ' 0:00 a.m. of the reference day ' are present or absent in a given housing unit, this unit being where they live during most of the year with their family, or where they have all or most of their belongings.
• REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).

Consumer Confidence Indicator is calculated according to the methodology of the EC - DG ECFIN, and corresponds to the arithmetic mean of the balances of the following questions:
- How has the financial situation of your household changed over the last 12 months? It has...1. + + got a lot better; 2. + got a little better; 3. = stayed the same; 4.- got a little worse; 5. - - got a lot worse; 6. N don't know.
- How do you expect the financial position of your household to change over the next 12 months? It will...1. + + get a lot better; 2. + get a little better; 3. = stay the same; 4. - get a little worse; 5. - - get a lot worse; 6. N don't know.
- How do you expect the general economic situation in this country to develop over the next 12 months? It will... 1. + + get a lot better; 2. + get a little better; 3. = stay the same; 4. - get a little worse; 5. - - get a lot worse; 6. N don't know.
- Compared to the past 12 months, do you expect to spend more or less money on major purchases (furniture, electrical/electronic devices, etc.) over the next 12 months? I will spend...1. + +much more; 2. + a little more; 3. - a little less; 4. - - much less; 5. N don't know