Yes: a national youth policy (in the form of a policy, strategy or law) exists, is within 18 months of expiration, or is in draft form but is actively discussed and pushed towards adoption, is a transversal or cross-departmental approach that is clearly articulated and described, or 2/3 or more of the regions have current regional youth policies.
No: a national youth policy does not exist, or less than 2/3 of regions have regional youth policies.
Draft: a currently active or recently expired national youth policy that is currently under revision, or a new youth policy is being developed.
Unclear: status of the policy is unknown.

Source: Youth Policy Labs

Yes: a governmental authority (ministry, department or office) that is primarily responsible for youth on the national level, often includes “youth” in its title (e.g. Ministry of Youth and Sports), is assigned responsibility for youth by policy or law, is recognized as having the primary responsibility for youth by media and/or regional or international forums, or 2/3 or more of the regions have regional authorities responsible for youth.
No: a national youth governmental authority does not exist, or less than 2/3 of regions have regional youth governmental authorities.
Unclear: status of the youth governmental authority is unknown.

Source: Youth Policy Labs

Yes: a national youth organisation or association (council, body or platform) that is recognised as the national representative structure for youth by governments, media and/or regional or international forums.
No: a national youth organisation or association does not exist.
Unclear: status of the national youth organisation or association is unknown. Note: this analysis does not include national youth parliaments.

Source: Youth Policy Labs

The age at which a person can legally qualify to hold certain government offices in the upper house (if applicable).
Source: various

The age at which a person can legally qualify to hold certain government offices in the lower house.
Source: various

The minimum age at which a child can be charged with a crime. Under this age, a child is immune from criminal prosecution, meaning they cannot be formally charged by authorities with an offence nor be subjected to any criminal law procedures or measures. Definition: Cornell Penal Reform International
Source: various

The minimum age at which a person can vote in public elections.
Source: various

The age at which children are released from parental authority and become “adults” for various important legal purposes. Definition: Cornell University Law School – Legal Information Institute.
Source: various

A value of zero means little or absolutely no youth development, and a value of 1 means the highest possible level of youth development attainable. YDI is a composite index measuring five domains: education, health, employment, political and civic participation.
Source: Commonwealth Youth Programme

Total is the ratio of children of the official secondary school age who are enrolled in secondary school to the population of the official secondary school age.
Source: UNESCO

Number of people age 15 to 24 years who can both read and write with understanding a short simple statement on their everyday life, divided by the population in that age group. Generally, ‘literacy’ also encompasses ‘numeracy’, the ability to make simple arithmetic calculations.
Source: UNESCO

Percentage of the total youth population aged 13-15, who consumed any smokeless or smoking tobacco product at least once during the 30 days prior to the survey.
Source: WHO