how many teams have lost by 20 points in the playoffs

The Cleveland Rebels weren't beaten in the playoffs when the point differential was 20 or above points all-time.

Interpreted as:

How many teams have lost by 20 or more points in the playoffs?

	TEAM	L	DIFF	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	Rebels	0	26	1	240.0	77.0					30.0						17.0	25.0	68.0					240	77						16
2	Bombers	0	22	1	240.0	73.0					29.0	93.0	31.2				15.0	22.0	68.2	35.5				240	73						22
3	Knicks	0	508	20	240.0	110.8	48.4		10.0	5.0	44.1			8.5	21.5	39.5	18.5	23.9	77.2		12.6	31.0		4,800	2,216	871		100	50
4	Warriors	0	1,192	46	240.0	117.3	53.5	27.5	9.7	6.6	44.9	93.8	47.9	14.1	32.5	43.3	18.7	26.0	71.6	55.7			13.1	11,040	5,398	2,300	1,266	330	226	447	1,040
5	Kings	0	198	8	240.0	111.1			9.7	4.3	42.9			5.5	13.0	42.3	24.0	30.5	78.7				15.3	1,920	889			29	13	46	202
6	Capitols	0	22	1	240.0	92.0		13.0			35.0	94.0	37.2				22.0	29.0	75.9	43.1				240	92		13				25
7	Lakers	0	1,836	67	240.0	119.0			9.2	7.2	45.4			5.5	13.3	41.2	24.3	32.5	74.9					16,080	7,972			431	340		1,517
8	Packers	0	23	1	240.0	94.0					31.0						32.0	45.0	71.1					240	94						34
9	Olympians	0	20	1	240.0	108.0					42.0	103.0	40.8				24.0	36.0	66.7	45.4				240	108						24
10	76ers	0	706	28	240.0	122.3		29.7			46.5	88.4	52.6	8.7	18.7	46.6	22.9	29.3	78.0	60.4				6,720	3,425		831				611
11	Celtics	0	1,995	77	240.0	119.5		26.8			45.8	94.4	48.5	9.6	22.1	43.1	21.8	27.8	78.4	56.0				18,480	9,202		2,062				1,767
12	Pistons	0	693	28	240.0	106.5			7.5	5.4	40.8	84.0	48.6	5.1	12.5	40.6	20.4	26.9	76.0	55.6	12.6	34.5	11.9	6,720	2,983			188	135	297	637
13	Hawks	0	487	19	240.0	111.1			10.1	5.2	43.0	89.2	48.2	7.4	19.6	37.8	21.2	28.9	73.4	54.5	12.1	34.5	12.0	4,560	2,111			101	52	120	426
14	Wizards	0	276	10	240.0	114.6	55.3	23.1			44.4	89.9	49.4	9.0	22.0	40.9	22.2	29.3	75.8	55.7				2,400	1,146	553	231				205
15	Bucks	0	881	34	240.0	118.8	52.3	28.8		6.2	47.3	91.9	51.4	12.2	30.6	39.9	17.5	23.7	73.8	58.0				8,160	4,040	1,779	978		149		749
16	Rockets	0	574	23	240.0	116.3	49.5	26.7	8.8		44.5	88.8	50.1	9.1	25.0	36.6	18.9	25.0	75.7	58.3			12.8	5,520	2,675	1,138	613	203		294	503
17	Bulls	0	659	24	240.0	109.6	45.9	27.9	10.4	4.3	42.1	82.4	51.1	5.3	13.1	40.9	20.2	27.6	73.2	57.9	15.0	30.8	13.3	5,760	2,630	1,101	669	249	104	320	551
18	Trail Blazers	0	262	11	240.0	115.0	47.0	28.0	8.9	5.3	43.8	87.1	50.3	6.8	15.6	43.2	22.5	30.0	74.8	57.3	11.9	35.1	13.0	2,640	1,265	517	308	98	58	143	275
19	Suns	0	584	23	240.0	120.0	45.3	27.5	7.5	5.1	46.2	86.7	53.3	8.7	19.0	45.7	19.3	24.0	80.1	61.7			12.5	5,520	2,760	1,041	633	173	117	287	507
20	Spurs	0	1,039	40	240.0	109.6	46.1	24.6	8.1	6.7	41.8	80.6	51.9	8.0	18.0	44.5	18.2	23.4	77.6	60.3			11.8	9,600	4,382	1,844	982	323	269	470	785
21	Thunder	0	840	30	240.0	115.3	47.0	25.7	10.2	6.0	42.1	84.1	50.0	9.1	23.1	39.4	22.0	27.0	81.4	60.0	11.7	35.2	12.3	7,200	3,458	1,409	771	306	179	370	643
22	Nuggets	0	315	11	240.0	120.5	47.4	28.5	8.5	5.4	45.2	86.2	52.4	7.6	17.5	43.5	22.5	27.8	81.0	61.2	11.2	36.2	12.4	2,640	1,326	521	313	94	59	136	271
23	Mavericks	0	482	18	240.0	115.7	46.5	21.9	9.2	5.1	42.9	85.3	50.3	10.4	24.6	42.2	19.5	24.6	79.2	60.1	11.8	34.7	11.1	4,320	2,082	837	395	166	92	200	390
24	Jazz	0	462	16	240.0	108.8	45.1	28.1	8.3	6.5	41.2	79.6	51.8	5.9	11.9	49.5	20.5	27.3	75.2	59.4	12.3	32.8	11.6	3,840	1,740	721	450	133	104	186	374
25	Cavaliers	0	840	30	240.0	117.7	44.9	24.4	7.8	5.1	42.3	81.2	52.1	12.2	26.6	45.9	21.0	27.1	77.6	63.2	10.6	34.3	11.6	7,200	3,532	1,346	732	235	152	348	609