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Share-based payments (Tables)

12 Months Ended

Dec. 31, 2022

Share-based payments

Summary of the number of shares in active share option plans

Share options outstanding

Share options exercisable

Shares

Scheme

Shares

Shares

Shares

outstanding

Shares

Shares

Shares

Shares

Shares

Year

interest at

awarded

lapsed

vested

at

exercisable at

vested

exercised

lapsed

exercisable at

of

Vesting

1 January

during

during

during

31 December

1 January

during

during

during

31 December

grant

year

2022

2022

2022

2022

2022

2022

2022

2022

2022

2022

2012

2015

—

—

—

—

—

168,551

—

(168,426)

(125)

—

2013

2016

—

16,964

—

(16,964)

—

1,025,307

16,964

(137)

—

1,042,134

2014

2017

—

19,487

—

(19,487)

—

1,188,070

19,487

(11,367)

(2)

1,196,188

2015

2018

—

21,107

—

(21,107)

—

1,364,269

21,107

(118,858)

—

1,266,518

2016

2019

—

30,808

—

(30,808)

—

1,942,074

30,808

(131,628)

(58)

1,841,196

2017

2020

—

24,878

—

(24,878)

—

1,625,618

24,878

(324,744)

(1,025)

1,324,727

2018

2021

891,744

34,531

(5,910)

(905,768)

14,597

1,538,591

905,768

(451,433)

(5,058)

1,987,868

2019

2022

4,776,149

132,345

(332,441)

(4,114,390)

461,663

—

4,114,390

(1,878,327)

(22,984)

2,213,079

2020

2023

3,471,012

—

(284,625)

—

3,186,387

—

—

—

—

—

2021

2024

4,137,673

—

(339,688)

—

3,797,985

—

—

—

—

—

2022

2025

—

4,964,496

(118,596)

—

4,845,900

—

—

—

—

—


				Share options outstanding										Share options exercisable
												Shares
				Scheme		Shares		Shares		Shares		outstanding		Shares		Shares		Shares		Shares		Shares
Year				interest at		awarded		lapsed		vested		at		exercisable at		vested		exercised		lapsed		exercisable at
of		Vesting		1 January		during		during		during		31 December		1 January		during		during		during		31 December
grant		year		2021		2021		2021		2021		2021		2021		2021		2021		2021		2021
2012		2015		—		—		—		—		—		179,519		—		(10,968)		—		168,551
2013		2016		—		12,073		—		(12,073)		—		1,085,178		12,073		(71,944)		—		1,025,307
2014		2017		—		13,693		—		(13,693)		—		1,200,990		13,693		(26,613)		—		1,188,070
2015		2018		—		15,831		—		(15,831)		—		1,398,235		15,831		(49,797)		—		1,364,269
2016		2019		—		22,920		(15)		(22,905)		—		2,052,013		22,905		(131,521)		(1,323)		1,942,074
2017		2020		—		19,720		(85)		(19,635)		—		1,784,890		19,635		(171,187)		(7,720)		1,625,618
2018		2021		6,024,191		164,397		(1,066,488)		(4,230,356)		891,744		—		4,230,356		(2,691,765)		—		1,538,591
2019		2022		4,993,019		33,885		(250,755)		—		4,776,149		—		—		—		—		—
2020		2023		3,561,710		754		(91,452)		—		3,471,012		—		—		—		—		—
2021		2024		—		4,228,162		(90,489)		—		4,137,673		—		—		—		—		—