Why do people say the PS2 started out slow?

[FishyJoe]

 The Japan numbers show three times the sales after the same amount of time.

 

Week	Console 1	Date	Weekly	Total		Console 2	Date	Weekly	Total
1	PS2	03/05/00	756,662	756,662		PS3	11/12/06	87,592	87,592
2	PS2	03/12/00	185,094	941,756		PS3	11/19/06	44,021	131,613
3	PS2	03/19/00	86,136	1,027,892		PS3	11/26/06	36,010	167,623
4	PS2	03/26/00	130,639	1,158,531		PS3	12/03/06	31,880	199,503
5	PS2	04/02/00	192,195	1,350,726		PS3	12/10/06	49,528	249,031
6	PS2	04/09/00	138,539	1,489,265		PS3	12/17/06	72,872	321,903
7	PS2	04/16/00	87,817	1,577,082		PS3	12/24/06	80,022	401,925
8	PS2	04/23/00	83,272	1,660,354		PS3	12/31/06	75,314	477,239
9	PS2	04/30/00	77,280	1,737,634		PS3	01/07/07	70,845	548,084
10	PS2	05/07/00	52,978	1,790,612		PS3	01/14/07	30,397	578,481
11	PS2	05/14/00	48,817	1,839,429		PS3	01/21/07	23,939	602,420
12	PS2	05/21/00	62,343	1,901,772		PS3	01/28/07	21,127	623,547
13	PS2	05/28/00	100,752	2,002,524		PS3	02/04/07	20,298	643,845
14	PS2	06/04/00	93,901	2,096,425		PS3	02/11/07	23,886	667,731
15	PS2	06/11/00	88,920	2,185,345		PS3	02/18/07	21,266	688,997
16	PS2	06/18/00	76,774	2,262,119		PS3	02/25/07	21,050	710,047
17	PS2	06/25/00	75,151	2,337,270		PS3	03/04/07	46,826	756,873
18	PS2	07/02/00	89,725	2,426,995		PS3	03/11/07	30,406	787,279
19	PS2	07/09/00	101,681	2,528,676		PS3	03/18/07	21,332	808,611
20	PS2	07/16/00	89,056	2,617,732		PS3	03/25/07	20,008	828,619
21	PS2	07/23/00	67,558	2,685,290		PS3	04/01/07	17,602	846,221
22	PS2	07/30/00	63,231	2,748,521		PS3	04/08/07	15,203	861,424