**Series Code**: AG.AGR.TRAC.NO

**Indicator Name**: Agricultural machinery, tractors

**Long definition**: Agricultural machinery refers to the number of wheel and crawler tractors (excluding garden tractors) in use in agriculture at the end of the calendar year specified or during the first quarter of the following year.

**Periodicity**: Annual

**Aggregation method**: Sum

**Limitations and exceptions**: The data are collected by the Food and Agriculture Organization of the United Nations (FAO) through annual questionnaires. The FAO tries to impose standard definitions and reporting methods, but complete consistency across countries and over time is not possible. The data collected from official national sources through the questionnaire are supplemented with information from official secondary data sources. The secondary sources cover official country data from websites of national ministries, national publications and related country data reported by various international organizations.

**Source**: Food and Agriculture Organization, electronic files and web site.

**Statistical concept and methodology**: A tractor provides the power and traction to mechanize agricultural tasks, especially tillage. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanized. The most common use of the term "tractor" is for the vehicles used on farms. The farm tractor is used for pulling or pushing agricultural machinery or trailers, for plowing, tilling, disking, harrowing, planting, and similar tasks. Planting, tending and harvesting a crop requires both a significant amount of power and a 

## Source Code
The source code for this chart is located at [https://github.com/nathansnellaert/subsets-pipelines/blob/main/integrations/assets/worldbank/wdi_charts.py#L15](GitHub)

Number of mobile cellular subscriptions per one hundred people

Mobile Cellular Subscriptions per 100 People, Afghanistan

Year

Mobile Cellular Subscriptions per 100 People

Cumulative Sum

Smooth values using a 7-day moving average

Smooth

Difference between values and their values 1 days ago

Difference

Percentage change between values and their values 1 days ago

Mobile Cellular Subscriptions per 100 People, Afghanistan

Number of mobile cellular subscriptions per one hundred people

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