what is the average number of strikeouts that pitchers throw in 10 years

Cap Anson struck out 1 batter when playing 10+ seasons.

Interpreted as:

What is the average number of strikeouts that pitchers throw in 10 or more years?

	NAME	SO	SEAS	G	W	L	W%	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Cap Anson C. Anson	1	22	3	0	1	.000	0	4.50	0	0	1	4.0	4	2	5	2	2		3	21	0	2.25	4.50	0.50	4.50	4.8	9.5	1.50		11.25	143	10.76	306	9.00	-3
2	George Bradley G. Bradley	611	10	287	138	125	.525	265	2.50	245	28	2	2404.1	2,469	668	1,392	42	179		22	10,119	166	2.29	0.67	3.41	0.16	6.0	1.8	1.10		5.21	92	2.68	103	9.24	-36.8
3	John Cassidy J. Cassidy	2	10	2	1	1	.500	2	5.00	2	0	0	18.0	24	10	11	0	1		0	76	0	1.00	0.50	2.00	0.00	2.6	1.3	1.39		5.50	194	2.78	108	12.00	-0.9
4	Bobby Mathews B. Mathews	1,199	10	323	166	136	.550	315	3.00	289	10	3	2734.1	3,008	910	1,758	50	336	3	8	11,889	130	3.95	1.11	3.57	0.16	10.1	2.8	1.22	.288	5.79	102	2.65	91	9.90	86.2
5	John Morrill J. Morrill	22	15	18	1	2	.333	2	4.30	2	0	3	58.2	75	28	46	0	12		13	261	6	3.38	1.84	1.83	0.00	8.4	4.6	1.48	.330	7.06	149	2.91	98	11.51	0.3
6	Jim O'Rourke J. O'Rourke	4	19	6	0	1	.000	0	4.12	0	0	2	19.2	17	9	14	0	2		3	70	1	1.83	0.92	2.00	0.00	5.7	2.9	0.97		6.41	131	3.16	93	7.78	0.7
7	Deacon White D. White	3	15	2	0	0		0	7.20	0	0	1	10.0	19	8	15	0	2		2	51	0	2.70	1.80	1.50	0.00	5.9	3.9	2.10	.413	13.50	174	2.78	65	17.10	1.1
8	Mike Dorgan M. Dorgan	103	10	18	8	7	.533	15	3.28	13	0	0	140.0	123	51	100	5	59		1	622	24	6.62	3.79	1.75	0.32	16.6	9.5	1.30		6.43	113	3.44	107	7.91	-4.3
9	Will White W. White	1,041	10	403	229	166	.580	402	2.28	394	36	0	3542.2	3,440	896	1,844	65	496		1	14,951	221	2.64	1.26	2.10	0.17	7.0	3.3	1.11	.254	4.68	83	2.98	108	8.74	-109.3
10	Frank Hankinson F. Hankinson	81	10	32	16	12	.571	28	2.50	28	2	1	266.2	281	74	154	1	31		3	1,144	5	2.73	1.05	2.61	0.03	7.1	2.7	1.17	.272	5.20	98	2.50	98	9.48	2.6
11	King Kelly K. Kelly	4	16	12	2	2	.500	0	4.14	0	0	0	45.2	63	21	49	5	30		9	236	8	0.79	5.91	0.13	0.99	1.7	12.7	2.04	.301	9.66	112	6.33	169	12.42	-12.6
12	Jim McCormick J. McCormick	1,704	10	492	265	214	.553	485	2.43	466	33	1	4275.2	4,092	1,155	2,095	82	749	12	7	17,702	160	3.59	1.58	2.28	0.17	9.6	4.2	1.13	.265	4.41	86	2.88	100	8.61	-32.7
13	John Ward J. Ward	920	17	293	164	103	.614	262	2.10	245	24	3	2469.2	2,324	576	1,185	26	253		32	10,164	144	3.35	0.92	3.64	0.09	9.1	2.5	1.04		4.32	82	2.43	96	8.47	9.1
14	Ned Williamson N. Williamson	7	13	12	1	1	.500	1	3.34	1	0	3	35.0	38	13	31	1	5		9	160	2	1.80	1.29	1.40	0.26	4.4	3.1	1.23	.252	7.97	106	3.25	104	9.77	0
15	Dan Brouthers D. Brouthers	8	19	4	0	2	.000	2	7.83	2	0	0	23.0	44	20	37	0	11		1	127	4	3.13	4.30	0.73	0.00	6.3	8.7	2.39		14.48	291	3.52	138	17.22	-2.6
16	Pud Galvin P. Galvin	1,799	14	697	361	308	.540	681	2.87	639	57	1	5941.1	6,352	1,895	3,315	121	744	54	18	25,160	220	2.73	1.13	2.42	0.18	7.2	3.0	1.19	.278	5.02	94	2.97	95	9.62	94.5
17	Jack Glasscock J. Glasscock	3	17	5	0	0		0	6.43	0	0	0	7.0	12	5	11	1	7		3	41	2	3.86	9.00	0.43	1.29	7.3	17.1	2.71	.379	14.14	220	7.64	222	15.43	-3.2
18	Blondie Purcell B. Purcell	138	12	79	15	43	.259	57	3.73	52	0	0	581.1	746	241	486	5	84		16	2,643	59	2.14	1.30	1.64	0.08	5.2	3.2	1.43	.307	7.52	144	2.82	110	11.55	-18.7
19	Hardy Richardson H. Richardson	6	14	5	3	0	1.000	0	3.94	0	0	0	16.0	16	7	10	1	13		5	83	4	3.38	7.31	0.46	0.56	7.2	15.7	1.81		5.63	122	5.55	169	9.00	-4
20	Tom Burns T. Burns	1	13	1	0	0		0	0.00	0	0	0	1.1	2	0	4	0	2		0	10	0	6.75	13.50	0.50	0.00	10.0	20.0	3.00		27.00	0	5.53	226	13.50	-0.4
21	Fred Dunlap F. Dunlap	2	12	2	0	0		0	6.75	0	0	1	2.2	6	2	3	0	0		2	12	0	6.75	0.00		0.00	16.7	0.0	2.25	.600	10.13	198	1.78	43	20.25	0.6
22	Buck Ewing B. Ewing	23	18	9	2	3	.400	4	3.45	4	0	0	47.0	55	18	36	2	23		4	233	3	4.40	4.40	1.00	0.38	9.9	9.9	1.66	.288	6.89	95	4.07	114	10.53	-1.8
23	Tim Keefe T. Keefe	2,564	14	600	342	225	.603	594	2.63	554	39	2	5049.2	4,438	1,474	2,470	75	1,233	83	7	20,941	240	4.57	2.20	2.08	0.13	12.2	5.9	1.12	.257	4.40	79	2.92	87	7.91	239.2
24	Jim Keenan J. Keenan	2	10	4	0	1	.000	0	2.37	0	0	0	19.0	17	5	8	0	4		4	76	1	0.95	1.89	0.50	0.00	2.6	5.3	1.11	.243	3.79	70	3.46	106	8.05	-0.4
25	Old Hoss Radbourn O. Hoss Radbourn	1,830	12	527	309	194	.614	502	2.68	488	35	3	4527.1	4,328	1,347	2,273	118	875	54	24	18,918	214	3.64	1.74	2.09	0.23	9.7	4.6	1.15	.262	4.52	82	3.15	95	8.60	51