The data sources are the statistical surveys carried out by the both institutions.
The issue is bilingual (Bulgarian/English) and contains detailed statistical information about the demographic state in the Republic of Bulgaria during the year of 2015. Data for the number and the structure of the population and for its natural movement and internal migration are published in the issue.
The issue includes data about the activity of district, regional and military courts as well as Specialized Criminal Court in penal cases of a general, private and administrative nature. Comparable data on crimes with penalty inflicted, as well as persons convicted with sentences in force for 1989 - 2015 period are also presented.
The publication contains statistical information on the development of publishing activity in Bulgaria by main indicators for 2015.
Data by some indicators, such as: titles; circulation; average circulation of books, pamphlets, newspapers, magazines and bulletins for the period 1961 - 2015, are also included. In the publication are applied methodology notes and brief analysis.
The Catalogue contains detailed and clearly structured information about NSI printed and electronic publications issued in 2017. The Catalogue is a quick reference guide including information about every issue - content, type (printed or electronic version), periodicity, price, date of issue and international identification number. The publications are set up in three themes - General Publications, Population and Social Statistics and Economy.