what is the average amount of walks an mlb player has per season

Bob Addy walked 5 times in his rookie season in 1876.

	NAME	BB	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	SO	PA	TB	XBH	AVG	SLG	WRC	WRAA	WOBA	WRC+	BRAA
1	Bob Addy B. Addy	5	1876	CWS	32	142	36	40	4	1	0	16	0	147	46	5	.282	.324	24	2.1	.296	104	0.9
2	Art Allison A. Allison	2	1876	LOU	31	130	9	27	2	1	0	10	6	132	31	3	.208	.238	13	-6.4	.214	57	-8.7
3	Doug Allison D. Allison	3	1876	HAR	44	163	19	43	4	0	0	15	9	166	47	4	.264	.288	23	-1.5	.265	88	-3.1
4	Cap Anson C. Anson	12	1876	CWS	66	309	63	110	9	7	2	59	8	321	139	18	.356	.450	74	26.2	.383	148	23.6
5	Ross Barnes R. Barnes	20	1876	CWS	66	322	126	138	21	14	1	59	8	342	190	36	.429	.590	105	53.2	.478	197	50.5
6	Joe Battin J. Battin	6	1876	STL	64	283	34	85	11	4	0	46	6	289	104	15	.300	.367	52	8.6	.316	126	11.5
7	Oscar Bielaski O. Bielaski	2	1876	CWS	32	139	24	29	3	0	0	10	3	141	32	3	.209	.230	14	-7.2	.211	61	-8.3
8	Joe Blong J. Blong	2	1876	STL	62	264	30	62	7	4	0	30	9	266	77	11	.235	.292	33	-6.6	.245	90	-4
9	Amos Booth A. Booth	9	1876	CIN	63	272	31	71	3	0	0	14	11	281	74	3	.261	.272	39	-2.8	.264	97	-1.3
10	Eddie Booth E. Booth	2	1876	NYM	57	228	17	49	2	1	0	7	4	230	53	3	.215	.232	23	-11.5	.213	69	-11
11	Joe Borden J. Borden	3	1876	BOS	32	121	19	25	3	0	0	7	3	124	28	3	.207	.231	13	-5.9	.216	68	-5.9
12	Foghorn Bradley F. Bradley	2	1876	BOS	22	82	12	19	2	1	0	8	3	84	23	3	.232	.280	11	-1.9	.247	84	-2
13	George Bradley G. Bradley	3	1876	STL	64	265	29	66	7	6	0	28	12	268	85	13	.249	.321	38	-2.4	.266	101	0.2
14	Lew Brown L. Brown	3	1876	BOS	45	195	23	41	6	6	2	21	22	198	65	14	.210	.333	26	-4.1	.251	86	-4.2
15	Jack Burdock J. Burdock	13	1876	HAR	69	309	66	80	9	1	0	23	16	322	91	10	.259	.294	48	-0.4	.276	93	-3.5
16	Tom Carey T. Carey	3	1876	HAR	68	289	51	78	7	0	0	26	4	292	85	7	.270	.294	41	-2.3	.267	89	-5.1
17	John Cassidy J. Cassidy	1	1876	HAR	12	47	6	13	2	0	0	8	0	48	15	2	.277	.319	7	0.3	.285	98	-0.2
18	Jack Chapman J. Chapman	1	1876	LOU	17	67	4	16	1	0	0	5	3	68	17	1	.239	.254	8	-2.1	.237	68	-3.3
19	Bobby Clack B. Clack	5	1876	CIN	32	118	10	19	0	1	0	5	12	123	21	1	.161	.178	9	-9.2	.181	54	-8.5
20	John Clapp J. Clapp	8	1876	STL	64	298	60	91	4	2	0	29	2	306	99	6	.305	.332	53	7.2	.308	122	10.3
21	William Coon W. Coon	2	1876	PHI	54	220	30	50	5	1	0	22	4	222	57	6	.227	.259	25	-8.2	.230	68	-10.6
22	Bill Craver B. Craver	2	1876	NYM	56	246	24	55	4	0	0	22	7	248	59	4	.224	.240	26	-11	.220	72	-10.4
23	Ned Cuthbert N. Cuthbert	7	1876	STL	63	283	46	70	10	1	0	25	4	290	82	11	.247	.290	40	-3.9	.260	98	-1
24	Dory Dean D. Dean	2	1876	CIN	34	138	9	36	3	1	0	4	13	140	41	4	.261	.297	20	-1.3	.265	97	-0.6
25	Herman Dehlman H. Dehlman	9	1876	STL	64	245	40	45	6	0	0	9	10	254	51	6	.184	.208	23	-15	.201	68	-12.4