Before revision:  But our algorithm has passed years of testing in the valuation of employees liabilities in accordance with IAS 19 (Employee benefits). As an example, the article provides an assessment of the joint function of distribution of workers age and seniority of a large Russian energy enterprise. The proposed estimates can also be usedin other areas, such as medicine, biology, demography,  reliability, etc.
After revision:  But our algorithm has passed years of testing in the valuation of employees liabilities in accordance with IAS 19 Employee Benefits. Apart from insurance, some results of the work can be used, for example in medicine, biology, demography, reliability, etc.