how many unique michigan players have had a 1000 yard rushing season

Ron Johnson had 1,005 rushing yards for Michigan in 1967.

Interpreted as:

How many unique michigan players have had a 1000 or more yard rushing season?

	NAME	RUSH YDS	SEASON	TM	GP	ATT	YPC	RUSH YDS/G	RUSH TD	REC YDS	REC	AVG	REC YDS/G	REC TD
1	Ron Johnson R. Johnson	1,005	1967	MICH	10	220	4.6	100.5	6	179	13	13.8	17.9	1
2	Ron Johnson R. Johnson	1,391	1968	MICH	10	255	5.5	139.1	19	177	15	11.8	17.7	0
3	Billy Taylor B. Taylor	1,215	1971	MICH	11	217	5.6	110.5	13	2	1	2.0	0.2	0
4	Gordon Bell G. Bell	1,048	1974	MICH	11	174	6.0	95.3	11	11	1	11.0	1.0	0
5	Gordon Bell G. Bell	1,335	1975	MICH	11	255	5.2	121.4	12	67	6	11.2	6.1	1
6	Rob Lytle R. Lytle	1,402	1976	MICH	11	203	6.9	127.5	13	81	9	9.0	7.4	2
7	Russell Davis R. Davis	1,013	1977	MICH	11	207	4.9	92.1	7	148	12	12.3	13.5	1
8	Butch Woolfolk B. Woolfolk	1,273	1981	MICH	11	226	5.6	115.7	5	47	7	6.7	4.3	0
9	Lawrence Ricks L. Ricks	1,300	1982	MICH	11	243	5.3	118.2	8	52	7	7.4	4.7	0
10	Jamie Morris J. Morris	1,039	1986	MICH	12	196	5.3	86.6	5	240	29	8.3	20.0	1
11	Jamie Morris J. Morris	1,469	1987	MICH	11	259	5.7	133.5	11	126	17	7.4	11.5	1
12	Tony Boles T. Boles	1,359	1988	MICH	11	248	5.5	123.5	9	64	11	5.8	5.8	0
13	Jon Vaughn J. Vaughn	1,236	1990	MICH	11	201	6.1	112.4	9	113	19	5.9	10.3	0
14	Ricky Powers R. Powers	1,187	1991	MICH	11	230	5.2	107.9	9	89	12	7.4	8.1	0
15	Tyrone Wheatley T. Wheatley	1,122	1992	MICH	10	170	6.6	112.2	10	141	11	12.8	14.1	3
16	Tyrone Wheatley T. Wheatley	1,005	1993	MICH	9	189	5.3	111.7	11	152	14	10.9	16.9	1
17	Tyrone Wheatley T. Wheatley	1,064	1994	MICH	9	194	5.5	118.2	11	118	13	9.1	13.1	2
18	Tshimanga Biakabutuka T. Biakabutuka	1,724	1995	MICH	12	279	6.2	143.7	12	48	4	12.0	4.0	0
19	Anthony Thomas A. Thomas	1,257	1999	MICH	11	283	4.4	114.3	16	166	29	5.7	15.1	0
20	Anthony Thomas A. Thomas	1,551	2000	MICH	11	287	5.4	141.0	16	239	13	18.4	21.7	1
21	Chris Perry C. Perry	1,025	2002	MICH	12	239	4.3	85.4	10	48	8	6.0	4.0	0
22	Chris Perry C. Perry	1,589	2003	MICH	12	315	5.0	132.4	17	366	42	8.7	30.5	2
23	Michael Hart M. Hart	1,372	2004	MICH	11	261	5.3	124.7	9	233	25	9.3	21.2	1
24	Michael Hart M. Hart	1,515	2006	MICH	12	301	5.0	126.3	14	127	15	8.5	10.6	0
25	Michael Hart M. Hart	1,232	2007	MICH	9	233	5.3	136.9	12	43	7	6.1	4.8	0