what are the most points per game allowed by a defense single season alltime

Bobby Orr has the most points per game by a defenseman in a season, with 1.78 per game in 1970-71.

Interpreted as:

What are the most points per game with a minimum of 0.625 points per team game allowed by a defense single season alltime?

	NAME	P/GP	SEASON	TM	P	GP	G	A	+/-	PIM	PPG	PPA	SHG	SHA	GWG	OTG	S	S%	FOW	FO	FOW%	HIT	BKS	TKA	GVA	TOI/GP
1	Bobby Orr B. Orr	1.78	1970-71	BOS	139	78	37	102	+124	91	5	44	3	10	5		392	9.4
2	Paul Coffey P. Coffey	1.75	1985-86	EDM	138	79	48	90	+61	120	9	25	9	5	2	0	308	15.6
3	Bobby Orr B. Orr	1.69	1974-75	BOS	135	80	46	89	+80	101	16	36	2	2	4		384	12.0
4	Bobby Orr B. Orr	1.65	1973-74	BOS	122	74	32	90	+84	82	11	24	0	4	4		384	8.3
5	Bobby Orr B. Orr	1.60	1972-73	BOS	101	63	29	72	+55	99	7	28	1	4	3		282	10.3
6	Bobby Orr B. Orr	1.58	1969-70	BOS	120	76	33	87	+54	125	11	40	4	1	3		413	8.0
7	Paul Coffey P. Coffey	1.58	1983-84	EDM	126	80	40	86	+52	104	14	27	1	8	4	1	259	15.4
8	Bobby Orr B. Orr	1.54	1971-72	BOS	117	76	37	80	+83	106	11	24	4	5	4		353	10.5
9	Paul Coffey P. Coffey	1.51	1984-85	EDM	121	80	37	84	+57	97	12	27	2	4	6	0	285	13.0
10	Paul Coffey P. Coffey	1.51	1988-89	PIT	113	75	30	83	-10	195	11	53	0	0	2	0	342	8.8
11	Harry Cameron H. Cameron	1.46	1921-22	TSP	35	24	18	17		22					3	0
12	Paul Coffey P. Coffey	1.46	1987-88	PIT	67	46	15	52	-1	93	6	36	2	2	2	0	193	7.8
13	Cale Makar C. Makar	1.38	2025-26	COL	18	13	4	14	+12	6	0	7	0	0	1	0	34	11.8	0	0		10	22	9	13	25:27
14	Denis Potvin D. Potvin	1.38	1978-79	NYI	101	73	31	70	+71	58	12	30	3	1	2		237	13.1
15	Al MacInnis A. MacInnis	1.32	1990-91	CGY	103	78	28	75	+42	90	17	46	0	3	1	0	305	9.2
16	Paul Coffey P. Coffey	1.29	1994-95	DET	58	45	14	44	+18	72	4	27	1	0	2	0	181	7.7
17	Paul Coffey P. Coffey	1.29	1989-90	PIT	103	80	29	74	-25	95	10	38	0	1	3	0	324	9.0
18	Harry Cameron H. Cameron	1.29	1917-18	TAN	27	21	17	10		28					1	0
19	Brian Leetch B. Leetch	1.27	1991-92	NYR	102	80	22	80	+25	26	10	36	1	0	3	1	245	9.0
20	Ray Bourque R. Bourque	1.26	1993-94	BOS	91	72	20	71	+26	58	10	42	3	2	1	0	386	5.2
21	Denis Potvin D. Potvin	1.26	1975-76	NYI	98	78	31	67	+12	100	18	36	0	2	4		256	12.1
22	Ray Bourque R. Bourque	1.24	1990-91	BOS	94	76	21	73	+33	75	7	38	0	0	3	0	323	6.5
23	Erik Karlsson E. Karlsson	1.23	2022-23	SJS	101	82	25	76	-26	36	5	22	0	0	4	2	209	12.0	0	1	0.0	33	90	81	101	25:37
24	Ray Bourque R. Bourque	1.23	1983-84	BOS	96	78	31	65	+51	57	12	27	1	1	5	0	343	9.0
25	Paul Coffey P. Coffey	1.22	1990-91	PIT	93	76	24	69	-18	128	8	34	0	0	3	0	240	10.0