how many game did wilt play with 20 rebounds

Wilt Chamberlain had 20 rebounds versus the Seattle SuperSonics on March 25, 1973.

Interpreted as:

How many regular-season game did wilt play with 20 or more rebounds in his career?

	NAME	DATE	REB	TM		OPP	MIN	PTS	AST	FGM	FGA	FG%	FTM	FTA	FT%	TS%	PF
1	Wilt Chamberlain W. Chamberlain	3/25/1973	20	LAL	@	SEA	45	20	3	8	8	100.0	4	6	66.7	94.0	2
2	Wilt Chamberlain W. Chamberlain	3/23/1973	24	LAL	vs	BUF	44	19	7	8	8	100.0	3	7	42.9	85.7	4
3	Wilt Chamberlain W. Chamberlain	3/21/1973	20	LAL	@	KCO		19	7	8	9	88.9	3	4	75.0	88.3	2
4	Wilt Chamberlain W. Chamberlain	3/20/1973	23	LAL	@	ATL	47	13	4	6	11	54.5	1	2	50.0	54.7	2
5	Wilt Chamberlain W. Chamberlain	3/16/1973	22	LAL	vs	NYK	48	14	2	6	8	75.0	2	8	25.0	60.8	1
6	Wilt Chamberlain W. Chamberlain	3/13/1973	23	LAL	@	BUF		25		10	12	83.3	5	7	71.4	82.9
7	Wilt Chamberlain W. Chamberlain	3/6/1973	24	LAL	@	POR	48	22	5	9	12	75.0	4	8	50.0	70.9	1
8	Wilt Chamberlain W. Chamberlain	3/2/1973	26	LAL	vs	CHI	40	13	7	4	5	80.0	5	7	71.4	80.4	3
9	Wilt Chamberlain W. Chamberlain	2/25/1973	20	LAL	vs	MIL	46	24	4	10	14	71.4	4	5	80.0	74.1	3
10	Wilt Chamberlain W. Chamberlain	2/20/1973	24	LAL	@	CHI	40	16	1	5	9	55.6	6	9	66.7	61.7	3
11	Wilt Chamberlain W. Chamberlain	2/18/1973	21	LAL	vs	ATL	48	10	4	5	8	62.5	0	3	0.0	53.6	2
12	Wilt Chamberlain W. Chamberlain	2/17/1973	31	LAL	@	POR	48	17	11	6	9	66.7	5	10	50.0	63.4	2
13	Wilt Chamberlain W. Chamberlain	2/11/1973	31	LAL	vs	PHI	46	12	5	5	8	62.5	2	5	40.0	58.8	2
14	Wilt Chamberlain W. Chamberlain	2/6/1973	24	LAL	@	NYK	48	5	3	2	6	33.3	1	6	16.7	28.9	2
15	Wilt Chamberlain W. Chamberlain	2/4/1973	20	LAL		BAL	46	9	8	2	6	33.3	5	6	83.3	52.1	2
16	Wilt Chamberlain W. Chamberlain	2/2/1973	21	LAL	vs	HOU	44	18	3	5	8	62.5	8	11	72.7	70.1	3
17	Wilt Chamberlain W. Chamberlain	1/21/1973	21	LAL	vs	KCO	43	29	6	9	11	81.8	11	19	57.9	74.9	2
18	Wilt Chamberlain W. Chamberlain	1/19/1973	24	LAL	vs	NYK	48	2	4	1	3	33.3	0	4	0.0	21.0	2
19	Wilt Chamberlain W. Chamberlain	1/16/1973	26	LAL	vs	BAL	46	16	2	7	7	100.0	2	5	40.0	87.0	3
20	Wilt Chamberlain W. Chamberlain	1/12/1973	24	LAL	@	CHI	48	7	4	2	7	28.6	3	5	60.0	38.0	4
21	Wilt Chamberlain W. Chamberlain	1/2/1973	21	LAL	@	GSW	48	2	5	1	1	100.0	0	0		100.0	4
22	Wilt Chamberlain W. Chamberlain	1/1/1973	20	LAL	@	SEA	48	6	5	3	3	100.0	0	0		100.0	3
23	Wilt Chamberlain W. Chamberlain	12/29/1972	26	LAL	vs	KCO	40	12	5	5	6	83.3	2	4	50.0	77.3	0
24	Wilt Chamberlain W. Chamberlain	12/27/1972	20	LAL	@	HOU	48	12	4	5	10	50.0	2	2	100.0	55.1	2
25	Wilt Chamberlain W. Chamberlain	12/22/1972	23	LAL	vs	PHX	48	5	6	2	4	50.0	1	10	10.0	29.8	2