how many championships do the celtics have since the 1976

The Boston Celtics have won 6 championships since 1975-76.

	TEAM	CHAMPS	SEASON	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	Celtics	1	1975-76	82	240.9	106.2	52.9	24.1	6.8	3.2	43.0	96.4	44.6				20.2	25.9	78.0	49.3	16.7	36.2	19.6	19,755	8,708	4,341	1,980	561	260	1,609	2,002
2	Celtics	0	1976-77	82	241.8	104.5	51.3	24.5	6.2	3.2	42.2	94.8	44.5				20.1	26.6	75.6	49.1	15.1	36.2	20.4	19,830	8,572	4,207	2,010	506	263	1,673	2,039
3	Celtics	0	1977-78	82	241.8	105.7	49.8	24.0	7.8	3.6	42.6	93.1	45.8				20.5	26.3	77.9	50.5	15.1	34.8	20.1	19,830	8,670	4,085	1,969	643	295	1,652	2,033
4	Celtics	0	1978-79	82	240.0	108.2	42.9	24.3	8.7	3.5	43.0	89.6	48.0				22.2	28.3	78.4	53.0	13.6	29.2	20.9	19,680	8,874	3,515	1,995	710	283	1,713	1,977
5	Celtics	0	1979-80	82	242.4	113.5	44.9	26.8	9.9	3.8	44.1	90.1	49.0	2.0	5.1	38.4	23.3	29.9	77.9	55.0	15.0	30.0	18.8	19,880	9,303	3,684	2,198	809	308	1,539	1,974
6	Celtics	1	1980-81	82	241.2	109.9	43.6	26.9	8.3	7.2	43.7	86.6	50.4	0.8	2.9	27.0	21.7	28.9	75.2	55.3	14.1	29.6	19.2	19,780	9,008	3,579	2,202	683	594	1,577	1,990
7	Celtics	0	1981-82	82	241.2	112.0	45.6	25.9	8.0	6.9	44.6	89.4	49.9	0.6	2.2	26.6	22.2	30.0	74.0	54.5	15.3	30.4	17.7	19,780	9,180	3,742	2,126	652	568	1,452	2,014
8	Celtics	0	1982-83	82	241.8	112.1	46.4	27.0	9.6	6.4	45.3	92.0	49.2	0.5	2.3	21.0	21.1	28.6	73.7	53.6	15.5	30.9	18.8	19,830	9,191	3,805	2,216	789	521	1,541	2,062
9	Celtics	1	1983-84	82	243.4	112.1	45.1	25.9	8.2	5.2	44.1	88.2	50.0	0.7	2.8	24.0	23.3	29.4	79.2	55.4	14.1	31.0	17.3	19,955	9,194	3,697	2,122	673	430	1,420	1,949
10	Celtics	0	1984-85	82	240.3	114.8	45.7	27.9	7.9	5.0	45.4	89.3	50.8	1.3	3.8	35.6	22.7	28.1	80.6	56.4	13.6	32.1	16.2	19,705	9,412	3,746	2,287	645	414	1,332	1,781
11	Celtics	1	1985-86	82	242.1	114.1	46.4	29.1	7.8	6.2	45.3	89.2	50.8	1.7	4.8	35.1	21.8	27.4	79.4	56.4	12.9	33.6	16.6	19,855	9,359	3,807	2,387	641	511	1,360	1,756
12	Celtics	0	1986-87	82	241.5	112.6	42.9	29.5	6.8	6.4	44.5	86.0	51.7	2.5	6.9	36.6	21.2	26.3	80.8	57.7	11.4	31.5	15.9	19,805	9,237	3,518	2,421	561	526	1,300	1,710
13	Celtics	0	1987-88	82	241.2	113.6	41.1	29.9	7.6	5.1	43.9	84.2	52.1	3.3	8.6	38.4	22.5	28.0	80.3	58.8	11.3	29.8	15.9	19,780	9,315	3,370	2,448	620	415	1,304	1,804
14	Celtics	0	1988-89	82	241.2	109.2	44.2	26.7	7.8	5.1	42.9	87.1	49.3	1.0	3.8	25.2	22.4	28.6	78.3	54.8	14.4	29.8	16.3	19,780	8,958	3,621	2,189	639	418	1,336	1,876
15	Celtics	0	1989-90	82	240.3	110.0	46.0	29.5	6.6	5.5	43.5	87.2	49.8	1.3	4.9	26.2	21.8	26.3	83.2	55.7	13.0	33.0	15.3	19,705	9,023	3,773	2,423	539	455	1,256	1,717
16	Celtics	0	1990-91	82	241.5	111.5	46.2	26.3	8.2	6.9	45.1	88.0	51.2	1.3	4.2	31.5	20.1	24.4	82.4	56.5	13.3	32.9	16.1	19,805	9,145	3,785	2,160	672	565	1,320	1,695
17	Celtics	0	1991-92	82	241.2	106.6	44.9	25.3	7.8	5.9	43.2	87.8	49.2	1.3	4.4	30.6	18.9	23.4	80.8	54.4	13.4	31.5	14.2	19,780	8,745	3,678	2,072	636	484	1,165	1,686
18	Celtics	0	1992-93	82	241.2	103.7	42.8	24.4	7.9	5.6	42.1	86.5	48.7	1.3	4.7	28.7	18.1	23.3	77.7	53.6	13.1	29.7	14.3	19,780	8,502	3,512	1,999	647	458	1,174	1,862
19	Celtics	0	1993-94	82	242.7	100.8	41.7	23.5	8.2	5.4	40.6	86.1	47.2	1.7	5.8	28.9	17.8	24.4	73.0	52.1	12.6	29.0	15.1	19,905	8,267	3,417	1,928	674	440	1,242	1,849
20	Celtics	0	1994-95	82	241.5	102.8	42.4	21.7	7.5	4.4	38.8	83.5	46.4	4.4	12.0	36.8	20.8	27.7	75.3	53.7	14.1	28.3	15.9	19,805	8,428	3,476	1,783	612	361	1,305	1,975
21	Celtics	0	1995-96	82	242.7	103.6	42.4	21.9	8.0	5.0	38.6	84.7	45.6	6.6	17.7	37.1	19.9	27.9	71.4	53.4	12.8	29.6	15.9	19,905	8,495	3,477	1,792	653	406	1,302	2,041
22	Celtics	0	1996-97	82	242.7	100.6	40.0	21.9	9.9	3.8	37.4	85.0	44.0	5.7	16.2	35.1	20.1	26.8	75.0	52.0	13.4	26.7	16.4	19,905	8,248	3,283	1,792	810	315	1,342	1,915
23	Celtics	0	1997-98	82	240.6	95.9	39.5	22.1	12.0	4.5	36.7	84.6	43.4	5.1	15.2	33.2	17.4	24.0	72.6	50.4	14.6	24.9	16.2	19,730	7,864	3,240	1,816	987	366	1,330	2,203
24	Celtics	0	1998-99	50	243.0	93.0	42.8	21.5	9.1	5.1	36.3	83.3	43.6	5.5	15.2	36.0	14.9	21.5	69.2	50.1	13.6	29.2	16.1	12,150	4,650	2,138	1,073	453	255	807	1,193
25	Celtics	0	1999-00	82	240.6	99.3	43.0	21.2	9.7	3.5	37.2	83.9	44.4	5.1	15.4	33.1	19.8	26.5	74.5	52.0	13.5	29.5	15.4	19,730	8,146	3,528	1,741	795	286	1,259	2,223
	Average	0.1		80.6	241.7	105.2	43.5	24.2	8.1	4.9	40.1	85.4	46.9	6.2	17.4	35.7	19.3	25.0	77.3	54.6	12.0	31.5	15.7	19486.3	8484.6	3505.4	1952.4	654.0	394.9	1265.5	1798.1
	Total	6		4,031	241.7	105.2	43.5	24.2	8.1	4.9	40.1	85.4	46.9	6.2	17.4	35.7	19.3	25.0	77.3	54.6	12.0	31.5	15.7	974,315	424,230	175,270	97,618	32,701	19,745	63,275	89,907