|
About us Selling BLCO Buying BLCO Recruitment Articles Advertise Contact us |
 |
 |
 |
 Buy BLCO |
Sell BLCO |
Contact us |
 |
||
<<< Previous page |
Energy Production DATA RELIABILITY AND CAUTIONARY NOTES: Energy: The energy balances data are primarily based on well-established and institutionalized accounting methodologies, and are therefore considered reliable. One exception is the calculation of fuelwood and other biomass fuel use, which are estimated by the IEA based on small sample surveys or other incomplete information. These data give only a broad impression of trends and should not be strictly compared between countries. The IEA also reports that it can be difficult to distinguish between agriculture, commercial, and public sectors, and there may be some overlap in these sectors. IEA data do not distinguish between no data (denoted in these tables with X) and zero values. WRI has distinguished between the two where possible, but some values represented as zero should probably be indicated by X and vice versa. Extreme caution should be exercised if considering using the data to extrapolate into the future. Energy usage is extremely variable from year to year due to short-term factors such as the weather and the economy that significantly impact any one year's production. Population (per capita calculations): United Nations demographic models are based on recent surveys and censuses with well-understood qualities, which make these data fairly reliable, although accuracy varies. Data are adjusted for overenumeration and underenumeration of certain age and sex groups (e.g., infants, female children, and young males), misreporting of age and sex distributions, and changes in definitions, when necessary. These adjustments incorporate data from civil registrations, population surveys, earlier censuses, and, when necessary, population models based on information from socioeconomically similar countries. Historical data are used when deemed accurate, also with adjustments and scaling. However, accurate historical data do not exist for many developing countries. In such cases, the UN Population Division uses available information and demographic models to estimate the main demographic parameters. |