数据来源   
Generally the sources of these data are national fishery administrations
质量保障   
The intention of the statistical compilation is to provide complete coverage of fishery employment statistics throughout the world.

Coverage completeness

数据收集方法:  Data is primarily collected directly from each country through the FISHSTAT FM questionnaire
数据处理方法: Where officially reported national statistics are lacking or are considered unreliable FAO/FIPS occasionally makes estimates based on alternative sources of information
 
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