what is the average age of the players on the astros

What is the average age per game of the players on the astros?

Interpreted as:

	NAME	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Joey Amalfitano J. Amalfitano	117	380	44	90	12	5	1	27	45	1	43	4	4	434	115	18	5	3	5	13	.237	.317	.303	.620	37	-13.2	.283	73	-14.5
2	John Anderson J. Anderson	10	2	0	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.5	.000	-106	-0.5
3	Bob Aspromonte B. Aspromonte	1,007	3,588	336	925	111	24	51	385	274	26	383	18	21	3,946	1,237	186	30	28	47	105	.258	.313	.345	.658	381	-33.2	.293	89	-49
4	Pidge Browne P. Browne	65	100	8	21	4	2	1	10	13	0	9	0	0	114	32	7	0	1	0	8	.210	.298	.320	.618	10	-3.4	.284	74	-3.7
5	Bob Bruce B. Bruce	161	286	19	42	6	1	0	16	21	3	85	0	0	331	50	7	20	1	0	2	.147	.212	.175	.387	5	-31.1	.186	15	-32
6	George Brunet G. Brunet	22	20	2	1	0	0	0	0	1	0	10	0	0	22	1	0	1	0	0	0	.050	.095	.050	.145	-2	-4.2	.077	-57	-4.2
7	Don Buddin D. Buddin	40	80	10	13	4	1	2	10	17	1	17	0	0	100	25	7	2	0	2	4	.163	.316	.313	.629	9	-2.6	.289	77	-2.8
8	Jim Busby J. Busby	15	11	2	2	0	0	0	1	2	0	3	0	1	13	2	0	0	0	0	0	.182	.308	.182	.490	1	-0.8	.248	51	-0.8
9	Jim Campbell J. Campbell	82	244	15	54	7	0	7	25	16	0	63	0	0	264	82	14	4	0	3	10	.221	.269	.336	.605	20	-8.3	.269	72	-8.4
10	Bob Cerv B. Cerv	19	31	2	7	0	0	2	3	2	0	10	0	0	33	13	2	0	0	0	2	.226	.273	.419	.692	3	-0.4	.307	89	-0.5
11	Al Cicotte A. Cicotte
12	Ron Davis R. Davis	200	710	75	170	39	3	10	70	44	10	129	8	9	771	245	52	6	1	4	10	.239	.293	.345	.638	72	-5.1	.289	88	-10.1
13	Dick Drott D. Drott	33	27	2	3	0	0	0	0	0	0	8	0	0	28	3	0	1	0	0	2	.111	.111	.111	.222	-1	-4.4	.100	-38	-4.3
14	Turk Farrell T. Farrell	181	333	14	45	5	0	3	12	7	1	124	0	0	352	59	8	11	0	0	5	.135	.155	.177	.333	-4	-41.9	.151	-6	-42.9
15	Ernie Fazio E. Fazio	114	240	34	43	10	3	2	6	29	1	75	4	4	272	65	15	2	0	1	2	.179	.270	.271	.541	18	-11	.251	64	-10.8
16	Dick Gernert D. Gernert	10	24	1	5	0	0	0	1	5	0	7	0	0	29	5	0	0	0	0	0	.208	.345	.208	.553	2	-1	.278	70	-1.1
17	Dave Giusti D. Giusti	194	306	23	60	9	1	4	36	12	3	74	0	0	338	83	14	17	0	0	3	.196	.234	.271	.505	17	-16.9	.231	48	-18.9
18	Jim Golden J. Golden	43	54	7	12	2	2	0	8	1	1	6	0	0	59	18	4	3	0	0	1	.222	.250	.333	.583	4	-2.9	.259	58	-3.1
19	Billy Goodman B. Goodman	82	161	12	41	4	1	0	10	12	0	11	0	0	174	47	5	1	0	2	6	.255	.306	.292	.598	13	-6.9	.272	66	-7.4
20	J C Hartman	90	238	13	44	6	0	0	8	6	2	29	2	1	248	50	6	2	0	1	7	.185	.211	.210	.421	4	-23.5	.192	17	-23.8
21	Al Heist A. Heist	27	72	4	16	1	0	0	3	3	1	9	0	0	76	17	1	0	0	0	5	.222	.263	.236	.499	4	-5.3	.233	42	-5.5
22	Ken Johnson K. Johnson	114	220	8	17	3	0	1	4	4	2	114	0	0	244	23	4	18	0	0	2	.077	.102	.105	.206	-13	-39.5	.097	-42	-39.8
23	Russ Kemmerer R. Kemmerer	53	16	1	5	0	0	0	0	1	0	4	0	0	17	5	0	0	0	0	0	.313	.353	.313	.665	2	-0.1	.307	93	-0.1
24	Norm Larker N. Larker	147	506	58	133	19	5	9	63	70	7	47	1	1	590	189	33	4	3	7	10	.263	.358	.374	.732	73	4.5	.331	104	2.8
25	Bob Lillis B. Lillis	614	1,912	151	444	55	8	2	102	82	10	90	17	20	2,043	521	65	32	7	9	50	.232	.267	.272	.539	120	-100.5	.243	55	-106.1