Competition Analysis on Industry Populations Based on a Three-Dimensional Lotka–Volterra Model

Table 3

Sample data and seasonal smoothing data of car sales.

Year	Quarter	Sample data			Seasonal smoothing data
		BYD	Great Wall	ChangAn	BYD	Great Wall	ChangAn
2020	3	98819	182765	225284	92732	173252	184340
	2	91360	156011	181133	93678	169556	163993
	1	59659	106427	121559	96856	173549	148508
2019	4	121090	247806	209384	110452	198452	161753
	3	102602	167978	143895	119314	211231	144593
	2	104071	171985	119194	124315	204440	145866
	1	114044	206038	174539	125858	197640	152508
2018	4	156538	298924	140742	125007	191261	165956
	3	122607	140812	148988	118849	183444	194455
	2	110244	144786	145761	110795	195656	202495
	1	110639	180523	228332	106187	202382	197748
2017	4	131904	267655	254739	101197	212539	203302
	3	90391	189660	181146	108212	232547	195767
	2	91812	171689	126775	115218	238035	194257
	1	90681	221152	250547	119637	241703	197278
2016	4	159963	347688	224598	122254	234505	190065
	3	118414	211612	175106	116883	200851	182063
	2	109491	186361	138860	105920	182496	177858
	1	101149	192358	221696	104079	173141	189035
2015	4	138477	213071	192588	110110	165619	181415
	3	74562	138192	158287	110433	151124	166541
	2	102126	148941	183568	114427	142207	152951
	1	125273	162271	191218	114969	127553	132417
2014	4	139769	155092	133092	109431	107331	108318
	3	90540	102524	103924	108174	88897	94418
	2	104295	90325	101433	113155	82093	82161
	1	103121	81384	94823	116615	75343	71124
2013	4	134741	81355	77491	126547	69930	64589
	3	110464	75308	54898	—	—	—
	2	118133	63325	57283	—	—	—
	1	142851	59733	68684	—	—	—

Unit: vehicle.