name,type,description,nullable,constraints
indicator_code,string,World Bank / World Development Indicators code for the metric,false,"Example: NY.GDP.MKTP.KD.ZG"
indicator_name,string,Human-readable macroeconomic indicator name,false,
year,integer,Calendar year of the observation,false,"Min: 1960"
value,number,Observed value of the indicator for the given year,false,
unit,string,Unit of measure for the value,false,"Examples: percent, annual_percent, current_usd"