what is the average defensive rating for a center

Kareem Abdul-Jabbar had a defensive rating of 99.4 in his career.

	NAME	DRTG	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	Kareem Abdul-Jabbar K. Abdul-Jabbar	99.4	1,239	35.3	22.9	10.0	3.5	0.9	2.6	9.4	16.8	56.1	0.0	0.0	5.6	4.0	5.4	73.6	59.5	2.4	7.6	2.7	43,787	28,316	12,369	4,302	1,160	3,189	2,527	3,667
2	Zaid Abdul-Aziz Z. Abdul-Aziz	96.2	209	21.5	8.3	7.8	1.4	0.6	1.0	3.1	7.1	44.2				2.0	2.6	77.7	50.3	2.4	5.4	0.7	4,485	1,726	1,627	283	131	205	11	434
3	Dennis Awtrey D. Awtrey	100.5	523	19.9	4.6	4.2	2.1	0.4	0.3	1.8	3.9	45.5	0.0	0.0		1.0	1.5	66.8	49.8	1.3	2.9	1.1	10,386	2,389	2,217	1,103	186	182	245	1,116
4	Walt Bellamy W. Bellamy	98.7	78	31.5	13.0	9.6	2.4	0.7	0.6	5.0	10.3	48.7				3.0	4.9	61.0	52.3	3.4	6.2		2,454	1,017	745	189	52	48		234
5	Tom Boerwinkle T. Boerwinkle	94.3	304	16.8	4.9	5.8	2.9	0.4	0.5	2.0	4.1	49.2				0.9	1.3	67.9	52.8	1.8	4.0	1.2	5,119	1,501	1,756	882	110	138	26	689
6	Bob Christian B. Christian	100.6	81	15.4	4.8	4.2	1.2	0.2	0.4	1.7	3.6	48.6				1.3	1.9	70.2	54.5	1.0	3.1		1,244	386	339	98	19	32		191
7	Mel Counts M. Counts	95.2	150	14.9	5.0	4.6	1.8	0.6	0.5	2.1	5.0	41.8				0.8	1.1	75.4	45.7	1.2	3.3		2,239	756	687	274	85	74		355
8	Dave Cowens D. Cowens	95.5	524	37.9	17.1	12.8	4.0	1.1	0.9	7.2	15.7	46.3	0.0	0.1	7.1	2.6	3.3	80.3	50.1	3.0	9.8	2.2	19,878	8,970	6,696	2,104	599	488	543	1,945
9	Dick Cunningham D. Cunningham	87.9	10	5.3	0.6	1.8	0.1	0.2	0.2	0.3	0.6	50.0				0.0	0.7	0.0	33.0	0.1	1.7		53	6	18	1	2	2		6
10	Jim Davis J. Davis	94.1	157	12.9	4.1	3.7	1.1	0.6	0.4	1.5	3.5	43.3				1.1	1.6	68.4	49.2	1.3	2.4		2,025	645	578	176	89	66		287
11	Steve Downing S. Downing	94.0	27	5.4	2.4	1.5	0.4	0.2	0.0	0.8	2.4	31.8				0.8	1.5	55.0	38.3	0.5	1.0		146	64	41	11	5	0		33
12	Leroy Ellis L. Ellis	96.8	110	30.2	8.5	9.2	1.9	0.9	0.9	3.5	7.8	45.3				1.5	2.0	73.2	49.2	3.1	6.1		3,320	938	1,012	210	102	96		286
13	Hank Finkel H. Finkel	95.9	122	7.7	2.3	2.0	0.5	0.1	0.1	0.9	2.1	43.2				0.4	0.7	59.3	46.3	0.6	1.4		945	275	247	59	10	10		134
14	Jim Fox J. Fox	97.8	294	20.5	7.8	6.0	1.5	0.5	0.3	2.9	6.2	47.6				1.9	2.4	81.4	54.1	1.9	4.1		6,028	2,296	1,769	455	151	79		702
15	John Gianelli J. Gianelli	100.7	489	26.9	8.2	6.2	1.7	0.5	1.0	3.5	7.5	47.1	0.0	0.0		1.2	1.7	70.2	50.1	2.0	4.2	1.5	13,134	4,029	3,038	807	225	476	275	1,198
16	George Johnson G. Johnson	98.6	26	9.2	2.1	2.3	0.3	0.3	0.3	0.9	2.0	45.1				0.3	0.7	47.1	46.2	0.8	1.6		238	54	61	9	8	8		46
17	George Johnson G. Johnson	96.8	848	20.9	5.0	6.8	1.1	0.5	2.5	2.1	4.6	45.2	0.0	0.0	50.0	0.9	1.3	69.8	48.9	2.3	4.5	1.6	17,753	4,280	5,749	921	456	2,082	872	2,667
18	Dwight Jones D. Jones	99.4	296	22.0	8.4	6.8	1.3	0.6	0.7	3.4	7.4	45.3				1.7	2.3	73.5	50.0	2.2	4.5	1.3	6,511	2,493	2,003	378	166	202	102	841
19	Kevin Kunnert K. Kunnert	100.7	555	21.8	8.3	7.3	1.4	0.5	1.1	3.6	7.7	47.6	0.0	0.0		1.0	1.5	68.2	49.9	2.5	4.8	1.5	12,104	4,602	4,031	784	252	616	391	1,927
20	Sam Lacey S. Lacey	96.5	761	30.8	9.5	9.0	4.3	1.3	1.5	3.8	8.7	44.3	0.0	0.1	18.8	1.8	2.4	75.0	48.7	2.2	6.9	2.2	23,463	7,206	6,873	3,275	999	1,160	978	2,636
21	Bob Lanier B. Lanier	98.5	716	33.3	19.5	9.4	3.3	1.1	1.5	7.8	14.9	52.8	0.0	0.0	15.4	3.8	5.0	77.0	57.2	2.6	6.8	2.6	23,844	13,984	6,696	2,353	777	1,100	1,112	2,201
22	Manny Leaks M. Leaks	94.5	53	15.9	4.1	4.6	0.5	0.2	0.7	1.5	4.4	34.1				1.1	1.6	69.9	40.2	1.8	2.8		845	216	244	25	10	39		95
23	Jerry Lucas J. Lucas	94.4	73	22.3	6.2	5.1	3.2	0.4	0.3	2.7	5.8	46.2				0.9	1.3	69.8	49.2	0.8	4.3		1,627	455	374	230	28	24		134
24	LaRue Martin L. Martin	97.6	194	14.4	5.6	4.6	0.8	0.2	0.5	2.3	5.4	42.2				1.0	1.5	69.5	46.1	1.4	3.2		2,799	1,090	900	161	46	98		455
25	Bob McAdoo B. McAdoo	98.3	609	33.7	23.3	10.1	2.3	0.9	1.6	9.1	17.9	51.0	0.0	0.1	0.0	5.0	6.5	76.6	56.0	2.5	7.6	2.3	20,507	14,178	6,163	1,379	577	984	687	2,001