what are the best effiency rating by a player before age 24

Irvin Cardona has the highest career rating by a player younger than 24 in Ligue 1, with a rating of 8.9.

	NAME	Rating	M	MIN	START	G	G/M	A	G+A	PK	FK	SH	SOT	WOOD	TCH	TCH-BOX	OFF
1	Irvin Cardona I. Cardona	8.9	1	64	1	1	1.00	0	1	0	0	2	2	0	28	1	0
2	Ante Palaversa A. Palaversa	7.90	2	29	0	1	0.50	0	1	0	0	1	1	0	21	1	0
3	Ghjuvanni Quilichini G. Quilichini	7.9	1	81	0	0	0.00	0	0	0	0	0	0	0	40	0	0
4	João Neves J. Neves	7.78	36	2,317	27	8	0.22	8	16	0	0	41	17	0	2,422	73	3
5	Joaquin Blazquez J. Blazquez	7.7	1	90	1	0	0.00	0	0	0	0	0	0	0	36	0	0
6	Soriba Diaoune S. Diaoune	7.6	1	1	0	0	0.00	1	1	0	0	1	0	1	6	3	0
7	Lee Kang-in L. Kang-in	7.47	45	2,763	32	9	0.20	8	17	0	0	57	21	3	2,388	96	2
8	Vitinha	7.41	56	3,869	44	7	0.13	5	12	0	0	60	23	1	3,656	86	1
9	Renato Sanches R. Sanches	7.4	1	90	1	0	0.00	0	0	0	0	2	1	0	80	2	0
10	William Saliba W. Saliba	7.39	36	3,240	36	0	0.00	0	0	0	0	17	3	0	3,478	37	1
11	Kylian Mbappé K. Mbappé	7.38	49	4,178	47	40	0.82	20	60	5	0	208	98	10	2,864	488	58
12	Emran Soglo E. Soglo	7.37	3	109	1	1	0.33	1	2	0	0	1	1	0	65	5	1
13	Assane Dioussé A. Dioussé	7.4	1	9	0	0	0.00	0	0	0	0	0	0	0	33	0	0
14	Samson Baidoo S. Baidoo	7.36	12	1,035	11	2	0.17	0	2	0	0	11	4	0	698	13	1
15	Oscar Cortés O. Cortés	7.34	4	40	0	1	0.25	1	2	0	0	1	1	0	38	6	1
16	Kasper Dolberg K. Dolberg	7.32	5	210	3	3	0.60	0	3	0	0	7	4	1	92	7	0
17	Myziane Maolida M. Maolida	7.30	3	123	1	1	0.33	0	1	0	0	4	2	0	81	4	1
18	Warren Zaïre-Emery W. Zaïre-Emery	7.28	94	5,921	63	6	0.06	6	12	0	0	49	19	1	5,566	120	4
19	Boubacar Kamara B. Kamara	7.27	34	2,781	31	1	0.03	0	1	0	0	22	3	0	2,848	41	0
20	Henrik Meister H. Meister	7.26	4	59	0	1	0.25	0	1	0	0	2	1	0	35	3	0
21	Andrey Santos A. Santos	7.23	43	3,688	41	11	0.26	3	14	0	0	58	20	0	2,801	48	1
22	Romain Faivre R. Faivre	7.23	35	2,689	29	10	0.29	5	15	5	1	58	24	1	1,995	103	2
23	Jérémy Doku J. Doku	7.21	45	1,861	18	8	0.18	4	12	0	0	37	18	1	1,265	137	0
24	Ibrahim Cissoko I. Cissoko	7.21	11	234	2	1	0.09	1	2	0	0	8	5	0	183	29	2
25	Yuito Suzuki Y. Suzuki	7.19	3	33	0	1	0.33	0	1	0	0	2	1	0	27	5	0