how many games has sengun got 15 rebounds

Alperen Sengun has played in 21 games with 15+ rebounds.

Interpreted as:

How many regular-season games has sengun got 15 or more rebounds?

	NAME	DATE	GP	REB	TM		OPP	MIN	PTS	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Alperen Sengun A. Sengun	4/3/2022	1	15	HOU	vs	MIN	33	14	4	0	1	5	7	71.4	0	1	0.0	4	4	100.0	79.9	6	9	5	4	-6
2	Alperen Sengun A. Sengun	11/26/2022	1	19	HOU	vs	OKC	35	21	7	3	2	10	17	58.8	0	1	0.0	1	1	100.0	60.2	6	13	3	6	+17
3	Alperen Sengun A. Sengun	12/13/2022	1	16	HOU	vs	PHX	29	10	2	0	1	4	10	40.0	0	0		2	2	100.0	46.0	6	10	3	1	-3
4	Alperen Sengun A. Sengun	1/16/2023	1	15	HOU	@	LAL	37	33	6	0	4	14	17	82.4	2	2	100.0	3	5	60.0	85.9	4	11	2	5	-6
5	Alperen Sengun A. Sengun	1/21/2023	1	16	HOU	@	MIN	37	19	7	1	3	7	9	77.8	1	1	100.0	4	10	40.0	70.9	2	14	4	2	-5
6	Alperen Sengun A. Sengun	4/2/2023	1	15	HOU	vs	LAL	38	18	5	2	3	9	17	52.9	0	1	0.0	0	2	0.0	50.3	5	10	2	3	-5
7	Alperen Sengun A. Sengun	4/7/2023	1	21	HOU	@	CHA	32	14	3	2	1	4	9	44.4	1	1	100.0	5	6	83.3	60.1	5	16	4	4	+5
8	Alperen Sengun A. Sengun	11/24/2023	1	15	HOU	vs	DEN	43	21	8	2	1	8	19	42.1	0	4	0.0	5	6	83.3	48.5	1	14	5	4	+12
9	Alperen Sengun A. Sengun	12/22/2023	1	15	HOU	vs	DAL	25	22	3	0	0	8	12	66.7	1	1	100.0	5	5	100.0	77.5	2	13	0	2	+30
10	Alperen Sengun A. Sengun	12/26/2023	1	16	HOU	vs	IND	37	30	5	4	0	11	20	55.0	0	0		8	9	88.9	62.6	7	9	4	2	-8
11	Alperen Sengun A. Sengun	3/5/2024	1	16	HOU	vs	SAS	37	45	3	5	1	19	32	59.4	2	3	66.7	5	7	71.4	64.1	6	10	2	3	+18
12	Alperen Sengun A. Sengun	3/6/2024	1	19	HOU	vs	LAC	42	23	14	2	0	10	19	52.6	0	0		3	8	37.5	51.1	6	13	3	4	+2
13	Alperen Sengun A. Sengun	10/23/2024	1	18	HOU	vs	CHA	34	25	5	4	1	10	22	45.5	2	3	66.7	3	4	75.0	52.6	6	12	3	2	+10
14	Alperen Sengun A. Sengun	10/25/2024	1	15	HOU	vs	MEM	32	16	2	1	0	5	13	38.5	0	2	0.0	6	8	75.0	48.4	5	10	3	5	+17
15	Alperen Sengun A. Sengun	11/11/2024	1	17	HOU	vs	WAS	31	27	3	0	3	12	19	63.2	1	1	100.0	2	2	100.0	67.9	7	10	2	1	+22
16	Alperen Sengun A. Sengun	12/29/2024	1	18	HOU	vs	MIA	35	18	6	1	1	8	14	57.1	0	1	0.0	2	2	100.0	60.5	5	13	5	4	+4
17	Alperen Sengun A. Sengun	1/18/2025	1	15	HOU	@	POR	31	23	6	2	1	10	19	52.6	1	1	100.0	2	5	40.0	54.2	6	9	3	2	+12
18	Alperen Sengun A. Sengun	2/4/2025	1	20	HOU	@	BKN	35	24	4	0	0	8	18	44.4	0	0		8	14	57.1	49.7	7	13	3	5	+8
19	Alperen Sengun A. Sengun	3/14/2025	1	15	HOU	vs	DAL	25	16	4	1	0	7	16	43.8	0	1	0.0	2	3	66.7	46.2	8	7	2	2	+22
20	Alperen Sengun A. Sengun	3/15/2025	1	15	HOU	vs	CHI	37	24	4	2	2	9	18	50.0	0	1	0.0	6	8	75.0	55.8	4	11	3	2	+12
21	Alperen Sengun A. Sengun	11/5/2025	1	16	HOU	@	MEM	35	20	7	1	1	6	14	42.9	0	2	0.0	8	10	80.0	54.3	3	13	6	1	+10
	Average		1.0	16.5				34.2	22.0	5.1	1.6	1.2	8.8	16.2	54.0	0.5	1.3	40.7	4.0	5.8	69.4	58.7	5.1	11.4	3.2	3.0	8.0
	Total		21	347				718	463	108	33	26	184	341	54.0	11	27	40.7	84	121	69.4	58.7	107	240	67	64	+168