what's the lowest usage rate for an nBA season in minimum 30 minutes per game?

Dennis Rodman had a usage percentage of 6.4 in 1999-00.

Interpreted as:

What is the lowest usage rate for an NBA season in minimum 30 minutes per game by a player ?

	NAME	SEASON	TM	GP	USG%	MPG	PPG	RPG	APG	SPG	BPG	3PM	FG%	FT%	TPG	FGM	FGA	3PA	3P%	FTM	FTA	PF	MIN	PTS	REB	AST	STL	BLK	TOV
1	Dennis Rodman	1999-00	DAL	12	6.4	32.4	2.8	14.3	1.2	0.2	0.1	0.0	38.7	71.4	1.6	1.0	2.6	0.1	0.0	0.8	1.2	3.4	389	34	171	14	2	1	19
2	Dennis Rodman	1993-94	SAS	79	7.1	37.8	4.7	17.3	2.3	0.7	0.4	0.1	53.4	52.0	1.7	2.0	3.7	0.3	20.8	0.7	1.3	2.9	2,989	370	1,367	184	52	32	138
3	T.R. Dunn	1983-84	DEN	80	7.4	33.8	5.7	7.2	2.9	2.2	0.4	0.0	47.0	73.1	1.2	2.2	4.6	0.0	0.0	1.3	1.8	2.9	2,705	454	574	228	173	32	97
4	Mark Eaton	1990-91	UTA	80	7.6	32.3	5.1	8.3	0.6	0.5	2.4	0.0	57.9	63.4	1.2	2.1	3.7	0.0		0.9	1.4	3.7	2,580	409	667	51	39	188	99
5	PJ Tucker	2018-19	HOU	3	8.7	35.7	9.3	4.7	1.7	0.7	0.7	2.3	47.4	50.0	0.3	3.0	6.3	4.7	50.0	1.0	2.0	3.3	107	28	14	5	2	2	1
6	Dennis Rodman	1997-98	CHI	80	8.7	35.7	4.7	15.0	2.9	0.6	0.2	0.1	43.1	55.0	1.8	1.9	4.5	0.3	17.4	0.8	1.4	3.0	2,856	375	1,201	230	47	18	147
7	Mark Eaton	1988-89	UTA	82	9.2	35.5	6.2	10.3	1.0	0.5	3.8	0.0	46.2	66.0	1.7	2.3	5.0	0.0		1.6	2.4	3.5	2,914	508	843	83	40	315	142
8	James Donaldson	1987-88	DAL	81	9.4	31.1	7.0	9.3	0.8	0.5	1.3	0.0	55.8	77.8	1.4	2.6	4.7	0.0		1.8	2.3	2.2	2,523	571	755	66	40	104	113
9	Michael Cage	1995-96	CLE	82	9.4	32.1	6.0	8.9	0.6	1.1	1.0	0.0	55.6	54.3	0.7	2.7	4.8	0.0	0.0	0.6	1.1	2.6	2,631	490	729	53	87	79	54
10	Bruce Bowen	2007-08	SAS	81	9.9	30.2	6.0	2.9	1.1	0.7	0.3	1.1	40.7	65.2	0.6	2.1	5.3	2.7	41.9	0.6	0.9	2.2	2,448	483	234	91	54	22	46
11	Ben Wallace	2007-08	TOT	72	9.9	30.6	4.8	8.4	1.5	1.2	1.6	0.0	39.2	42.6	0.9	1.9	4.9	0.1	0.0	1.0	2.3	1.7	2,205	348	604	105	88	117	67
12	Shane Battier	2008-09	HOU	60	9.9	33.9	7.3	4.8	2.3	0.8	0.9	1.5	41.0	82.1	0.8	2.4	5.9	4.0	38.4	0.9	1.1	1.9	2,031	436	285	137	48	54	49
13	T.R. Dunn	1982-83	DEN	82	10.0	32.2	7.6	7.5	2.3	1.8	0.3	0.0	48.2	73.0	1.4	3.1	6.4	0.0	0.0	1.5	2.0	2.7	2,640	627	615	189	147	25	113
14	Dennis Rodman	1996-97	CHI	55	10.0	35.4	5.7	16.1	3.1	0.6	0.3	0.1	44.8	56.8	2.0	2.3	5.2	0.3	26.3	0.9	1.6	3.1	1,947	311	883	170	32	19	111
15	Jamie Feick	1998-99	TOT	28	10.0	30.4	6.3	10.3	0.9	0.9	0.6	0.0	50.0	71.7	1.2	2.4	4.8	0.0		1.5	2.1	2.6	852	177	288	24	25	18	34
16	Andre Roberson	2016-17	OKC	79	10.1	30.1	6.6	5.1	1.0	1.2	1.0	0.6	46.4	42.3	0.6	2.7	5.9	2.3	24.5	0.6	1.4	2.6	2,376	522	403	79	94	79	51
17	Ben Wallace	2002-03	DET	73	10.2	39.4	6.9	15.4	1.6	1.4	3.2	0.0	48.1	45.0	1.2	2.9	6.0	0.1	16.7	1.2	2.6	2.5	2,873	506	1,126	120	104	230	88
18	Ben Wallace	2000-01	DET	80	10.3	34.5	6.4	13.2	1.5	1.3	2.3	0.0	49.0	33.6	1.5	2.7	5.5	0.1	25.0	1.0	3.0	2.4	2,760	511	1,052	123	107	186	117
19	Dennis Rodman	1995-96	CHI	64	10.3	32.6	5.5	14.9	2.5	0.6	0.4	0.0	48.0	52.8	2.2	2.3	4.8	0.4	11.1	0.9	1.7	3.1	2,088	351	952	160	36	27	138
20	James Donaldson	1986-87	DAL	82	10.4	36.9	10.8	11.9	0.8	0.6	1.7	0.0	58.6	81.2	1.3	3.8	6.5	0.0		3.3	4.0	2.3	3,028	889	973	63	51	136	104
21	Dan Majerle	1999-00	MIA	69	10.4	33.4	7.3	4.8	3.0	1.3	0.2	1.6	40.3	81.2	0.9	2.5	6.1	4.4	36.2	0.8	1.0	2.3	2,308	506	333	206	89	17	62
22	James Donaldson	1985-86	TOT	83	10.5	32.3	8.6	9.6	1.2	0.3	1.7	0.0	55.8	80.3	1.5	3.1	5.5	0.0		2.5	3.1	2.3	2,682	716	795	96	28	139	123
23	Ben Wallace	2001-02	DET	80	10.5	36.5	7.6	13.0	1.4	1.7	3.5	0.0	53.1	42.3	0.9	3.2	6.0	0.0	0.0	1.2	2.9	2.2	2,921	609	1,039	115	138	278	70
24	Ben Wallace	2006-07	CHI	77	10.5	35.0	6.4	10.7	2.4	1.4	2.0	0.0	45.3	40.8	1.3	2.5	5.5	0.1	20.0	1.4	3.5	2.0	2,697	494	821	186	111	156	101
25	Wes Unseld	1977-78	WAS	80	10.5	33.1	7.6	11.9	4.1	1.2	0.6		52.3	53.8	2.2	3.2	6.1			1.2	2.2	2.9	2,644	607	955	326	98	45	173