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24. Benefit plans (Tables)

12 Months Ended

Dec. 31, 2018

Benefit Plans Tables Abstract

Benefit plans

	12.31.18		12.31.17
Non-current	385,098		477,765
Current	32,365		46,375
Total Benefit plans	417,463		524,140

Benefit payment obligations

	12.31.18		12.31.17
Benefit payment obligations at beginning	524,140		442,170
Current service cost	32,904		42,500
Interest cost	79,304		126,954
Actuarial losses	5,638		(22,219)
Result from exposure to inflation for the year	(169,169)		(8,692)
Benefits paid to participating employees	(55,354)		(56,573)
Benefit payment obligations at period end	417,463		524,140

Detail of the charge recognized in the Statement of Comprehensive Income

	12.31.18		12.31.17		12.31.16
Cost	32,904		42,500		46,320
Interest	79,304		126,954		163,431
Actuarial results - Other comprehensive loss	5,638		(22,219)		(15,555)
	117,846		147,235		194,196

Actuarial assumptions

	12.31.18		12.31.17
Discount rate	5%		5%
Salary increase	1%		1%
Inflation	31%		18%

Benefit plan sensitivity analysis

			12.31.2018
Discount Rate: 4%
Obligation			459,651
Variation			42,188
			10%

Discount Rate: 6%
Obligation			381,587
Variation			(35,876)
			(9%)

Salary Increase : 0%
Obligation			379,992
Variation			(37,471)
			(9%)

Salary Increase: 2%
Obligation			460,939
Variation			43,476
			10%

Expected payments of benefits

	In 2019		In 2020		In 2021		In 2022		In 2023		Between 2022 to 2028
At December 31, 2018
Benefit payment obligations	32,365		6,221		6,207		6,450		2,059		11,128