how many nba teams have won game 6 and 7 in the playoffs

The Chicago Stags won once in game sixes all-time.

	TEAM	W	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF
1	Stags	1	1	240.0	66.0					22.0						22.0	37.0	59.5					240	66						22
2	Capitols	0	2	240.0	58.5					18.5						21.5	30.5	70.5					480	117						58
3	Warriors	20	32	240.8	104.0	49.8	22.4	8.1	5.9	38.9	91.9	42.3	13.3	35.9	37.0	19.2	26.5	72.4	50.2				7,705	3,328	1,495	718	178	130		761
4	Bombers	0	1	240.0	61.0		4.0			22.0	81.0	27.2				17.0	23.0	73.9	33.5				240	61		4				22
5	Bullets	1	1	240.0	88.0		11.0			30.0	87.0	34.5				28.0	38.0	73.7	42.4				240	88		11				33
6	Lakers	34	57	240.9	103.6			7.2	5.7	39.3			5.8	15.4	37.3	21.6	29.5	73.2					13,730	5,907			253	199		1,365
7	76ers	17	36	240.7	100.4					37.3			5.3	15.8	33.3	22.6	31.3	72.4					8,665	3,613						867
8	Knicks	13	29	240.0	95.8	41.2	20.3			35.2	79.6	44.3	6.9	18.4	37.4	20.8	26.9	77.2	52.4				6,960	2,778	1,195	588				697
9	Kings	4	9	240.0	96.6	48.6	21.0	9.0	3.6	34.8	86.0	40.4	7.5	19.5	38.5	22.0	29.0	75.9	48.9			15.0	2,160	869	437	189	63	25	105	236
10	Pistons	15	26	242.9	96.9					35.9			4.5	14.4	31.4	21.4	28.9	73.9					6,315	2,519						652
11	Celtics	35	71	243.2	102.1	47.1				38.4	89.0	43.1	6.5	20.0	32.7	21.2	27.6	76.8	50.5				17,265	7,251	3,343					1,744
12	Hawks	16	32	240.8	101.1	48.5				37.6	88.0	42.7	7.2	21.9	32.7	22.2	30.1	73.8	49.9				7,705	3,236	1,552					762
13	Wizards	12	23	242.2	100.3	47.3	20.3			38.7	88.4	43.8	6.0	20.5	29.3	20.8	28.6	72.9	49.7				5,570	2,307	1,088	467				528
14	Rockets	11	28	243.6	100.3	42.9	20.8	7.1	4.7	37.4	81.8	45.8	7.9	21.8	36.2	18.4	25.4	72.7	54.0			14.7	6,820	2,809	1,201	581	193	126	396	598
15	Suns	12	28	241.8	103.3	41.4	21.7	6.9	5.3	38.9	83.3	46.7	7.3	18.2	39.9	19.6	25.0	78.2	54.8			14.9	6,770	2,893	1,159	608	185	143	402	657
16	Bulls	16	29	242.6	95.0	42.0	21.3			35.7	80.9	44.1	5.7	15.4	37.1	18.9	24.6	76.8	51.8				7,035	2,755	1,219	619				658
17	Bucks	11	23	242.2	98.6	44.6	21.6	8.2	4.8	37.3	84.5	44.1	5.9	19.1	30.9	19.2	25.3	76.1	51.6				5,570	2,268	1,026	496	173	100		531
18	Clippers	8	20	240.0	104.7	41.8	22.0			38.9	84.3	46.1	8.7	26.5	32.9	19.6	25.7	76.1	54.7				4,800	2,093	836	439				462
19	Thunder	13	27	242.8	101.2	43.7	20.3	8.7	5.4	37.8	84.3	44.8	6.7	21.9	30.5	20.5	26.7	76.7	52.7			16.0	6,555	2,733	1,179	548	236	147	431	639
20	Cavaliers	9	19	242.6	95.6	43.6	19.6	6.6	5.2	35.1	79.5	44.1	8.1	22.2	36.6	18.3	24.9	73.4	52.8	11.6	32.0		4,610	1,817	828	373	125	99		416
21	Nuggets	7	19	242.6	104.5	43.2	22.2	7.2	5.0	38.5	86.4	44.5	8.4	23.2	36.1	20.5	27.1	75.7	53.2	11.9	31.3		4,610	1,985	821	422	137	95		432
22	Trail Blazers	10	18	240.0	101.6	41.3	20.9	7.2	6.2	37.7	80.8	46.6	6.5	17.2	38.0	20.8	26.0	80.1	55.1	12.6	28.8		4,320	1,829	744	376	129	111		430
23	Spurs	18	33	241.5	98.8	44.1	21.5	6.9	5.2	37.6	81.7	46.1	6.2	17.5	35.7	17.8	24.4	73.1	53.4			13.6	7,970	3,259	1,456	709	227	171	449	718
24	Nets	6	12	240.0	91.0	40.5	20.3	7.6	3.7	33.0	76.3	43.3	5.6	17.3	32.4	19.4	26.4	73.5	51.8	10.1	30.4	13.7	2,880	1,092	486	244	91	44	164	246
25	Jazz	8	19	240.0	99.7	40.8	21.3	6.8	4.7	35.3	77.8	45.3	7.4	18.8	39.5	21.7	28.5	76.2	55.2	11.4	29.4	11.6	4,560	1,894	775	405	130	90	221	448