#	Methods	Features of methods
1	A method of statistical observation based on reports	According to the determined format, statistical information is collected from enterprises, institutions, and service centers in a certain period. Compile reports based on operational and accounting data and submit them to the statistical office. The majority of travel information is contained in those reports.
2	Method of statistical registration of border customs	This approach is used in many countries. Some countries maintain border statistics by establishing close bilateral cooperation in border statistics. For instance, Canada collects the information of citizens who traveled to the USA and delivers it to the National Statics Commission of the USA.
3	Method to register tourists with an accommodation units	Customs statistics are substituted for compensatory purposes. The data collected during the statistical observation of hotels and other means of accommodation allows us to evaluate the distribution of visitors to the country’s regions, and to determine and control the interest of foreign and domestic tourists by looking at the choice of means of accommodation.
4	Method based on tourism income and outcome	It is a method of calculating the flow of tourists based on tourism income and outcome. Expenditure indicators that are based on relevant records of tourism industry enterprises or bank reports.
5	Banking method	Collecting information on the international exchange rate (foreign currency) and analyzing approach. The Central (National) Bank records travel expenses through commercial banks and currency exchange offices and conducts research on the sale and purchase of foreign currency through tourism.
6	Satellite estimation method	Satellite computing is used in international standards. This method is designed for a more detailed analysis of some important areas of social, economic, and social development. It allows for in-depth analysis of some issues such as environmental protection, tourism development, health care, etc.
7	Auxiliary calculation method	Obtain additional information on production activities and inter-sectoral relationships, analyze subsequent data using appropriate indicators and aggregates, and link physical indicators (e.g. tourist flows, employment) to outcome indicators.