what is the mpg average of nba players that came frrom the bench

J.J. Anderson played 12.3 minutes per game off the bench in his career.

	NAME	MPG	GP	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	J.J. Anderson	12.3	155	4.7	2.7	0.7		0.2	1.9	4.1	46.8	0.0	0.1	0.0	0.9	1.5	55.4	49.1				1,911	735	420	109		38		244
2	Richard Anderson R. Anderson	13.8	377	5.2	3.3	1.4			2.1	5.1	41.1	0.4			0.6	0.8	75.9	47.6				5,197	1,960	1,243	527				608
3	John Bagley J. Bagley	18.2	264	6.0	1.7	4.0	0.8	0.0	2.4	5.6	42.7	0.1	0.4	17.3	1.2	1.6	74.5	47.9	0.4	1.3	1.7	4,814	1,596	452	1,064	214	12	451	333
4	Billy Ray Bates B. Ray Bates	14.3	16	6.1	0.7	0.6			2.6	6.8	38.9	0.1			0.7	1.3	55.0	41.5				229	97	11	10				13
5	Charles Bradley C. Bradley	8.8	54	3.1	1.4	0.5			1.2	3.0	39.4	0.0	0.1	0.0	0.8	1.5	51.3	42.8				475	167	73	27				80
6	Dudley Bradley D. Bradley	12.4	313	3.5	1.4	1.3		0.2	1.3	3.2	41.1	0.2			0.6	0.9	71.9	49.0				3,869	1,092	447	413		68		514
7	Allan Bristow A. Bristow	10.0	37	2.8	1.6	1.9			1.2	2.7	44.4	0.2	0.4	46.2	0.3	0.4	71.4	49.4			0.8	371	104	59	70			30	46
8	Jim Brogan J. Brogan	8.0	58	3.8	1.1	1.1			1.6	3.7	42.7	0.1			0.6	0.7	79.1	47.2				466	219	62	66				79
9	Michael Brooks M. Brooks	21.3	99	7.9	5.3	2.1			3.2	7.0	45.4	0.0			1.5	2.3	66.8	49.4				2,112	784	525	204				271
10	Fred Brown F. Brown	16.8	149	9.2	1.1	2.8			4.1	8.0	51.4	0.1			0.9	1.0	86.0	54.7	0.3	0.8	1.2	2,499	1,371	158	419			176	178
11	Rickey Brown R. Brown	11.5	198	3.5	2.9	0.4		0.3	1.4	3.3	43.9	0.0			0.7	1.1	62.7	47.4				2,283	702	583	72		61		395
12	Quinn Buckner Q. Buckner	13.7	193	3.5	1.6	2.4			1.5	3.5	41.5	0.0	0.0	0.0	0.6	0.8	66.3	44.7				2,640	670	306	472				420
13	Marty Byrnes M. Byrnes	17.2	68	4.8	2.3	2.2			1.9	4.5	41.8	0.1			0.9	1.2	74.7	47.2				1,172	323	154	147				119
14	M.L. Carr	10.1	183	3.6	1.4	0.8			1.4	3.4	42.0	0.1	0.3	26.3	0.6	0.8	81.3	47.7				1,843	658	252	142				249
15	Butch Carter B. Carter	17.9	139	7.9	1.4	2.1			3.2	6.9	46.8	0.1			1.3	1.7	79.0	51.7				2,482	1,096	194	291				302
16	Darwin Cook D. Cook	18.4	323	7.9	1.7	2.7			3.3	7.6	44.0	0.1			1.1	1.4	79.4	48.0				5,944	2,549	549	865				578
17	Jeff Cook J. Cook	16.1	249	3.9	4.1	1.0	0.5	0.3	1.5	3.3	45.4	0.0	0.0	12.5	0.9	1.2	72.8	50.6	1.5	2.6	0.8	3,997	975	1,009	242	116	84	206	627
18	Joe Cooper J. Cooper	12.4	18	3.3	3.5	0.8			1.3	2.4	52.3	0.0	0.0		0.8	1.4	56.0	54.5				223	60	63	14				39
19	Michael Cooper M. Cooper	25.6	551	8.1	3.0	4.2			3.0	6.7	45.3	0.6			1.4	1.6	85.4	54.5				14,080	4,469	1,634	2,329				1,425
20	Wayne Cooper W. Cooper	14.1	270	4.4	4.0	0.5	0.2	1.1	1.8	4.1	44.8	0.0	0.0	0.0	0.8	1.1	75.8	49.0	1.4	2.6	0.7	3,803	1,198	1,087	142	47	299	181	651
21	Pat Cummings P. Cummings	15.8	167	6.8	4.3	0.7			2.8	5.8	49.2	0.0	0.0	0.0	1.2	1.6	70.7	52.6			1.3	2,634	1,141	717	112			215	411
22	Earl Cureton E. Cureton	17.0	433	4.6	4.3	0.9		0.5	1.9	4.2	46.5	0.0	0.0	0.0	0.7	1.3	53.5	48.2				7,359	1,978	1,866	389		211		941	-3
23	Quintin Dailey Q. Dailey	20.4	388	12.7	2.2	2.0			4.9	11.0	44.8	0.0	0.2	17.7	2.8	3.6	78.8	50.5				7,916	4,946	839	760				829
24	Charles Davis C. Davis	11.5	339	5.1	2.2	0.7			2.2	5.1	44.0	0.1			0.6	0.8	73.1	47.1				3,913	1,737	761	245				486
25	James Donaldson J. Donaldson	17.9	149	6.5	5.0	0.7			2.4	4.2	57.6	0.0	0.0		1.6	2.3	70.8	62.0	1.2	3.8	1.3	2,664	967	749	107			197	288