how many 20 rebound games does hakeem have

Hakeem Olajuwon played 48 games with 20+ rebounds.

Interpreted as:

How many 20 or more rebound regular-season games does hakeem have?

	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	Hakeem Olajuwon H. Olajuwon	1/19/1985	1	20	HOU	vs	UTA	40	34	4	3	0	13	23	56.5	0	0		8	12	66.7	60.1	11	9	2	2
2	Hakeem Olajuwon H. Olajuwon	2/14/1985	1	25	HOU	@	NYK	44	30	0	3	3	10	20	50.0	0	0		10	18	55.6	53.7	15	10	4	5
3	Hakeem Olajuwon H. Olajuwon	3/5/1985	1	25	HOU	@	DEN	48	20	2	1	7	7	22	31.8	0	0		6	8	75.0	39.2	9	16	2	5
4	Hakeem Olajuwon H. Olajuwon	3/19/1985	1	21	HOU	vs	CHI	42	24	0	0	4	12	20	60.0	0	0		0	0		60.0	8	13	4	4
5	Hakeem Olajuwon H. Olajuwon	3/22/1986	1	23	HOU	@	NYK	35	33	2	7	4	12	18	66.7	0	0		9	15	60.0	67.1	9	14	7	4
6	Hakeem Olajuwon H. Olajuwon	3/26/1986	1	21	HOU	@	IND	42	27	1	2	8	12	31	38.7	0	0		3	5	60.0	40.7	7	14	3	4
7	Hakeem Olajuwon H. Olajuwon	3/29/1986	1	20	HOU	@	WAS	31	17	1	0	1	6	13	46.2	0	0		5	9	55.6	50.1	7	13	3	5
8	Hakeem Olajuwon H. Olajuwon	4/1/1986	1	22	HOU	vs	GSW	43	34	5	4	7	16	21	76.2	0	0		2	7	28.6	70.6	8	14	4	3
9	Hakeem Olajuwon H. Olajuwon	11/8/1986	1	21	HOU	vs	SAC	40	25	6	4	4	12	21	57.1	0	0		1	2	50.0	57.1	10	11	5	3
10	Hakeem Olajuwon H. Olajuwon	12/16/1986	1	21	HOU	vs	PHX	42	24	1	0	0	8	16	50.0	0	0		8	15	53.3	53.1	10	11	3	3
11	Hakeem Olajuwon H. Olajuwon	1/10/1987	1	20	HOU	vs	DAL	41	25	4	2	3	11	24	45.8	0	0		3	6	50.0	46.9	10	10	2	5
12	Hakeem Olajuwon H. Olajuwon	1/7/1988	1	20	HOU	@	GSW	40	30	2	2	6	11	23	47.8	0	0		8	11	72.7	53.9	7	13	0	5
13	Hakeem Olajuwon H. Olajuwon	1/16/1988	1	20	HOU	vs	IND	36	25	2	2	3	8	16	50.0	0	0		9	10	90.0	61.3	4	16	3	5
14	Hakeem Olajuwon H. Olajuwon	2/18/1988	1	20	HOU	vs	LAL	42	20	0	3	1	7	19	36.8	0	0		6	7	85.7	45.3	5	15	4	4
15	Hakeem Olajuwon H. Olajuwon	3/10/1988	1	20	HOU	vs	POR	41	28	3	6	1	11	25	44.0	0	0		6	10	60.0	47.6	7	13	4	5
16	Hakeem Olajuwon H. Olajuwon	3/26/1988	1	21	HOU	vs	POR	43	29	3	4	5	11	27	40.7	0	1	0.0	7	10	70.0	46.2	9	12	2	5
17	Hakeem Olajuwon H. Olajuwon	4/12/1988	1	20	HOU	@	SAS	38	26	2	3	2	9	20	45.0	0	1	0.0	8	12	66.7	51.4	5	15	10	3
18	Hakeem Olajuwon H. Olajuwon	12/10/1988	1	21	HOU	vs	SEA	39	19	2	2	2	7	12	58.3	0	0		5	7	71.4	63.0	7	14	8	4
19	Hakeem Olajuwon H. Olajuwon	2/21/1989	1	25	HOU	@	NYK	41	29	3	1	3	13	24	54.2	0	1	0.0	3	7	42.9	53.5	8	17	3	4
20	Hakeem Olajuwon H. Olajuwon	3/10/1989	1	22	HOU	vs	DAL	42	29	1	2	3	11	18	61.1	0	0		7	9	77.8	66.0	3	19	2	5
21	Hakeem Olajuwon H. Olajuwon	3/14/1989	1	24	HOU	@	SAC	42	40	4	1	4	14	28	50.0	0	0		12	16	75.0	57.1	8	16	4	2
22	Hakeem Olajuwon H. Olajuwon	3/21/1989	1	23	HOU	vs	DEN	45	36	2	3	2	16	31	51.6	0	0		4	6	66.7	53.5	5	18	9	4
23	Hakeem Olajuwon H. Olajuwon	11/7/1989	1	20	HOU	vs	POR	33	13	1	2	2	5	16	31.3	0	1	0.0	3	7	42.9	34.1	3	17	4	3
24	Hakeem Olajuwon H. Olajuwon	11/11/1989	1	21	HOU	vs	UTA	42	24	2	5	12	10	22	45.5	0	0		4	9	44.4	46.2	7	14	5	5
25	Hakeem Olajuwon H. Olajuwon	12/12/1989	1	20	HOU	vs	PHX	40	25	5	3	9	11	26	42.3	0	0		3	6	50.0	43.6	2	18	2	5
	Average		1.0	21.2				40.9	26.9	2.6	2.4	4.2	10.6	20.6	51.3	0.0	0.1	0.0	5.8	8.5	67.5	55.2	6.5	14.8	3.7	4.0	11.7
	Total		48	1,019				1,964	1,290	125	114	203	507	989	51.3	0	6	0.0	276	409	67.5	55.2	310	709	178	190	+35