A measure of unemployed workers (above 18 years) in relation to the total labor force Unemployment Rate is calculated monthly by surveying a random sample of about 60,000 households, 375,000 plants. It is one of the key macroeconomic indicators. Only unemployed are taken into account, that is jobless people, which actively look for work. The unemployment rate is calculated by dividing the number of unemployed by the number in the labor force, where the labor force is the sum of the unemployed and the employed. The natural rate of unemployment is considered to make about 4-5 of the labour force. It is treated as an indicator of possible inflationary pressure through wages increase. Salary is considered to grow faster with low unemployment rate, especially in case inflation acceleration is expected. In case rates hikes are expected unemployment rate decrease triggers USD advance.