What does era mean for pitcher this regular season?

Interpreted as:

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Bryan Abreu B. Abreu	1.52	2025	HOU	41	3	3	.500	0	64	0	0	0	41.1	25	7	7	2	20	2	7	0	170	2	13.94	4.35	3.20	0.44	37.6	11.8	1.09	.280	1.52	38	2.21	55	5.44	8.5
2	Jason Adam J. Adam	1.61	2025	SDP	44	6	3	.667	0	52	0	0	0	44.2	34	8	12	2	19	2	3	1	186	3	10.48	3.83	2.74	0.40	28.0	10.2	1.19	.288	2.42	41	2.74	69	6.85	6.3
3	Willy Adames W. Adames		2025	SFG
4	Riley Adams R. Adams		2025	WSH
5	Nick Ahmed N. Ahmed		2025	TEX
6	Ozzie Albies O. Albies		2025	ATL
7	Sandy Alcantara S. Alcantara	7.01	2025	MIA	17	4	8	.333	17	67	0	0	0	86.0	89	67	68	11	35	4	0	0	385	4	7.01	3.66	1.91	1.15	17.4	9.1	1.44	.291	7.12	167	4.54	112	9.31	-4.8
8	Sergio Alcántara S. Alcántara		2025	SFG
9	Scott Alexander S. Alexander	6.06	2025	COL	19	1	1	.500	0	6	0	0	0	16.1	20	11	11	4	7	1	4	0	72	0	3.31	3.86	0.86	2.20	8.3	9.7	1.65	.296	6.06	130	7.00	165	11.02	-4.7
10	Tyler Alexander T. Alexander	4.97	2025	TOT	28	4	8	.333	4	42	0	0	1	54.1	60	30	37	3	19	1	8	2	237	0	6.96	3.15	2.21	0.50	17.7	8.0	1.45	.331	6.13	121	3.35	82	9.94	4.6
11	Dan Altavilla D. Altavilla	2.16	2025	CWS	15	0	1	.000	0	10	0	0	1	16.2	10	4	5	4	6	2	7	0	64	0	5.40	3.24	1.67	2.16	15.6	9.4	0.96	.143	2.70	53	6.44	153	5.40	-4
12	Jose Altuve J. Altuve		2025	HOU
13	José Alvarado J. Alvarado	2.70	2025	PHI	20	4	1	.800	0	25	0	0	7	20.0	20	6	7	1	4	0	9	0	84	2	11.25	1.80	6.25	0.45	29.8	4.8	1.20	.352	3.15	66	1.83	44	9.00	5
14	Shaun Anderson S. Anderson	7.59	2025	LAA	6	1	0	1.000	0	10	0	0	0	10.2	16	9	9	4	3	0	2	0	50	0	8.44	2.53	3.33	3.38	20.0	6.0	1.78	.364	7.59	186	6.92	165	13.50	-3.1
15	Tim Anderson T. Anderson		2025	LAA
16	Tyler Anderson T. Anderson	4.19	2025	LAA	18	2	6	.250	18	79	0	0	0	96.2	96	45	49	16	37	3	0	4	423	5	7.36	3.44	2.14	1.49	18.7	8.7	1.38	.278	4.56	103	4.84	115	8.94	-6.5
17	Miguel Andujar M. Andujar		2025	ATH
18	Orlando Arcia O. Arcia		2025	TOT
19	Nolan Arenado N. Arenado		2025	STL
20	Shawn Armstrong S. Armstrong	3.13	2025	TEX	36	3	3	.500	2	40	0	0	3	37.1	20	13	15	4	14	3	11	0	148	3	9.64	3.38	2.86	0.96	27.0	9.5	0.91	.184	3.62	78	3.69	89	4.82	1.9
21	Luis Arraez L. Arraez		2025	SDP
22	José Azócar J. Azócar		2025	TOT
23	Javier Báez J. Báez		2025	DET
24	Bryan Baker B. Baker	2.58	2025	BAL	41	3	2	.600	0	49	0	0	2	38.1	29	11	13	6	9	0	7	0	147	1	11.50	2.11	5.44	1.41	33.3	6.1	0.99	.277	3.05	66	3.26	82	6.81	3.2
25	Anthony Banda A. Banda	4.05	2025	LAD	41	4	1	.800	0	32	0	0	0	40.0	30	18	18	6	21	2	5	4	166	2	7.20	4.72	1.52	1.35	19.3	12.7	1.27	.229	4.05	100	5.15	125	6.75	-4.5