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Share-based payments (Tables)

12 Months Ended

Dec. 31, 2020

A summary of the terms and conditions, properly approved by the Compensation Committee of our Board of Directors, relating to the grants of the

non-vested

stock award under the equity compensation plan is as follows:


Grant date	Number of instruments		Vesting conditions	Contractual life
April, 2015		4,915	15% first three anniversaries 25% fourth 30% fifth anniversary	5 years
June, 2015		5,839	15% first three anniversaries 25% fourth 30% fifth anniversary	5 years
February, 2016		147,000	15% first three anniversaries 25% fourth 30% fifth anniversary	5 years
February, 2016		63,000	Fifth anniversary	5 years
May, 2016		7,899	15% first three anniversaries 25% fourth 30% fifth anniversary	5 years
February, 2017		22,012	One-third every anniversary	3 years
February, 2017		11,980	One-third every anniversary	3 years
February, 2017		2,237	Third anniversary	3 years
February, 2018		21,556	7% first month 31% first three anniversaries	3 years
February, 2018		14,379	33% first three anniversaries	3 years
February, 2018		1,316	15% first three anniversaries 25% fourth 30% fifth anniversary	5 years
July, 2018		6,104	Third anniversary	3 years
February, 2019		15,951	1% first month 33% first three anniversaries	3 years
June, 2019		9,256	33% first three anniversaries	3 years
June, 2019		977	33% first three anniversaries	3 years
August, 2019		1,039	33% first three anniversaries	3 years
December, 2019		1,724	100% first anniversary	1 year
February, 2020		24,650	1% first month 33% first three anniversaries	3 years
December, 2020		3,551	100% first anniversary	1 year

A summary of the

non-vested

stock award activity under the plan as of December 31, 2020, 2019 and 2018 with changes during these years is as follows (in number of shares):