how many times have nba teams scored over 21 points in the first quarter

The San Antonio Spurs have 720 games played in the first quarter with more than 21 points.

Interpreted as:

How many times in the regular season have NBA teams scored over 21 points in the first quarter?

	TEAM	GP	PTS	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	REB	AST	STL	BLK	TOV	PF
1	Spurs	720	20,868	60.0	29.0	11.4	7.4	1.9	1.4	11.4	23.0	49.5	3.0	7.2	41.1	3.3	4.1	80.1	58.5	2.4	9.0	3.1	43,200	8,209	5,315	1,361	1,003	2,196	2,801
2	Rockets	777	23,248	60.0	29.9	11.2	6.5	2.1	1.1	11.0	22.8	48.4	3.7	9.4	38.9	4.2	5.6	75.8	59.3	2.7	8.6	3.4	46,620	8,737	5,033	1,651	885	2,616	3,369
3	Mavericks	741	21,635	60.0	29.2	10.9	6.4	1.8	1.0	10.9	22.2	49.2	3.5	8.8	39.6	3.8	5.0	77.6	59.8	2.1	8.8	2.9	44,460	8,102	4,775	1,307	764	2,159	3,125
4	Pelicans	743	21,859	60.0	29.4	11.5	7.3	2.1	1.2	11.4	22.9	49.8	2.9	7.4	39.6	3.7	4.7	77.9	58.9	2.5	9.0	3.4	44,580	8,536	5,402	1,563	923	2,546	3,127
5	Magic	704	19,873	60.0	28.2	11.0	6.8	2.1	1.3	11.0	22.6	48.9	2.7	7.2	38.3	3.4	4.4	76.8	57.5	2.5	8.5	3.3	42,240	7,723	4,801	1,444	882	2,350	3,005
6	Celtics	744	21,972	60.0	29.5	11.6	7.1	2.0	1.3	11.3	23.0	49.0	3.8	9.4	40.1	3.2	3.9	80.7	59.6	2.4	9.2	3.1	44,640	8,637	5,271	1,464	963	2,274	3,071
7	Warriors	780	23,469	60.0	30.1	11.6	8.1	2.1	1.4	11.4	23.1	49.4	3.8	9.5	40.6	3.4	4.4	78.7	60.1	2.5	9.2	3.6	46,800	9,059	6,293	1,634	1,108	2,797	3,552
8	Kings	749	21,859	60.0	29.2	11.2	7.2	1.9	1.0	11.4	23.0	49.6	3.1	7.8	39.2	3.3	4.3	77.1	58.6	2.4	8.7	3.3	44,940	8,379	5,358	1,418	763	2,448	3,304
9	76ers	741	21,749	60.0	29.4	11.3	6.9	2.2	1.3	11.1	22.7	49.0	3.1	7.9	39.5	3.9	5.0	78.4	58.8	2.5	8.9	3.3	44,460	8,400	5,139	1,655	984	2,446	3,524
10	Hawks	748	21,793	60.0	29.1	11.1	7.1	2.1	1.2	11.2	22.9	48.8	3.2	8.2	38.7	3.6	4.6	78.6	58.5	2.5	8.6	3.4	44,880	8,294	5,327	1,590	882	2,554	3,150
11	Wizards	777	22,547	60.0	29.0	11.1	7.1	2.0	1.1	11.3	23.0	49.2	2.8	7.3	38.2	3.6	4.6	77.9	58.0	2.4	8.7	3.3	46,620	8,604	5,518	1,528	874	2,573	3,421
12	Bulls	691	19,736	60.0	28.6	11.3	7.0	1.9	1.2	11.3	22.8	49.3	3.0	7.4	40.1	3.1	3.9	78.5	58.2	2.3	9.0	3.1	41,460	7,823	4,856	1,292	819	2,124	2,667
13	Nuggets	781	23,399	60.0	30.0	11.4	7.7	1.9	1.1	11.7	22.9	51.3	3.0	7.4	41.0	3.5	4.4	78.6	60.4	2.7	8.7	3.3	46,860	8,920	6,043	1,517	857	2,577	3,095
14	Pacers	729	21,151	60.0	29.0	10.7	7.2	2.1	1.2	11.3	22.8	49.7	3.0	7.5	40.2	3.4	4.3	78.8	58.9	2.2	8.5	3.2	43,740	7,831	5,269	1,538	870	2,327	3,071
15	Nets	731	21,190	60.0	29.0	11.1	7.1	1.8	1.2	11.1	22.7	48.9	3.4	8.6	39.9	3.3	4.3	78.0	58.9	2.3	8.7	3.2	43,860	8,086	5,176	1,321	857	2,357	3,224
16	Thunder	766	22,604	60.0	29.5	11.5	6.4	2.1	1.3	11.4	23.0	49.4	2.9	7.4	38.8	3.9	5.0	77.9	58.5	2.6	8.9	3.3	45,960	8,841	4,925	1,616	1,004	2,548	3,511
17	Bucks	775	23,064	60.0	29.8	11.7	7.0	2.0	1.3	11.5	23.1	49.8	3.4	8.5	39.8	3.4	4.5	76.6	59.4	2.3	9.4	3.2	46,500	9,064	5,406	1,539	993	2,464	3,184
18	Suns	717	20,954	60.0	29.2	11.1	7.1	2.0	1.1	11.4	22.8	49.9	3.1	7.7	40.5	3.4	4.2	79.9	59.3	2.4	8.7	3.5	43,020	7,952	5,090	1,455	785	2,484	3,227
19	Trail Blazers	738	21,614	60.0	29.3	11.4	6.4	1.8	1.2	11.2	23.0	48.5	3.3	8.4	39.9	3.6	4.6	78.6	58.5	2.8	8.6	3.2	44,280	8,391	4,703	1,312	885	2,354	3,258
20	Jazz	713	20,484	60.0	28.7	11.4	6.6	1.7	1.3	10.9	22.1	49.2	3.6	8.9	39.8	3.4	4.3	79.8	59.9	2.5	8.9	3.6	42,780	8,130	4,723	1,243	895	2,544	2,946
21	Heat	741	21,411	60.0	28.9	11.0	6.9	1.9	1.2	11.0	22.1	49.8	3.2	7.8	40.6	3.7	4.7	78.6	59.8	2.4	8.7	3.2	44,460	8,161	5,131	1,437	864	2,407	3,162
22	Timberwolves	746	21,805	60.0	29.2	11.0	6.9	2.1	1.3	11.2	22.7	49.5	2.9	7.5	38.9	3.9	4.9	78.4	58.8	2.5	8.5	3.3	44,760	8,186	5,180	1,590	973	2,487	3,372
23	Raptors	742	21,589	60.0	29.1	10.9	6.7	2.1	1.2	11.1	22.6	49.1	3.2	8.1	39.5	3.7	4.6	80.7	59.1	2.5	8.4	3.1	44,520	8,091	4,956	1,558	890	2,321	3,264
24	Grizzlies	729	21,111	60.0	29.0	11.4	7.0	2.1	1.3	11.2	23.0	48.8	3.0	7.7	39.2	3.5	4.5	78.0	57.9	2.6	8.8	3.2	43,740	8,275	5,115	1,564	933	2,327	3,264
25	Hornets	703	19,980	60.0	28.4	11.1	6.9	1.9	1.2	10.9	22.8	47.7	3.2	8.1	39.3	3.5	4.5	77.9	57.3	2.4	8.7	3.0	42,180	7,786	4,861	1,343	833	2,142	2,778