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Kristof81 on 21 November 2017
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Bofferbrauer2 said:

I think PS4 Numbers got edited to reflect better Sonys sales announcements. As a result the gap between the PS4 and the Switch is apparently almost 400k smaller than what was reported before here on the site according to the gapcharz: http://www.vgchartz.com/article/270277/switch-vs-ps4vgchartz-gap-chartsseptember-2017-update/

I'm not sure what methodology was used in gap charts and of course, I could be mistaken. Below is my methodology and the numbers are based on VGC data. If you spot a mistake, please let me know, but mind you, the totals are correct.

Week Date PS4 Week Date NS
1 16/11/2013 1,071,184 1 04/03/2017 1,400,822
2 23/11/2013 98,775 2 11/03/2017 226,397
3 30/11/2013 963,588 3 18/03/2017 226,274
4 07/12/2013 343,670 4 25/03/2017 300,888
5 14/12/2013 493,043 5 01/04/2017 268,257
6 21/12/2013 760,582 6 08/04/2017 206,417
7 28/12/2013 462,998 7 15/04/2017 189,027
8 04/01/2014 286,604 8 22/04/2017 234,374
9 11/01/2014 216,231 9 29/04/2017 353,425
10 18/01/2014 188,036 10 06/05/2017 156,766
11 25/01/2014 175,638 11 13/05/2017 133,929
12 01/02/2014 186,754 12 20/05/2017 132,340
13 08/02/2014 172,395 13 27/05/2017 136,809
14 15/02/2014 169,144 14 03/06/2017 133,841
15 22/02/2014 473,534 15 10/06/2017 138,744
16 01/03/2014 189,493 16 17/06/2017 196,919
17 08/03/2014 147,109 17 24/06/2017 136,193
18 15/03/2014 159,532 18 01/07/2017 99,109
19 22/03/2014 242,809 19 08/07/2017 128,083
20 29/03/2014 204,498 20 15/07/2017 135,194
21 05/04/2014 188,751 21 22/07/2017 272,770
22 12/04/2014 160,625 22 29/07/2017 190,996
23 19/04/2014 162,924 23 05/08/2017 165,957
24 26/04/2014 146,118 24 12/08/2017 198,011
25 03/05/2014 139,295 25 19/08/2017 139,953
26 10/05/2014 137,825 26 26/08/2017 188,262
27 17/05/2014 126,289 27 02/09/2017 176,195
28 24/05/2014 132,357 28 09/09/2017 175,006
29 31/05/2014 216,534 29 16/09/2017 177,770
30 07/06/2014 158,740 30 23/09/2017 176,578
31 14/06/2014 148,240 31 30/09/2017 222,359
TOTAL   8,723,315   7,017,665

Source data:

PS4: week ending 14/06/2014 http://www.vgchartz.com/weekly/41805/Global/

NS : week ending 30/09/2017 http://www.vgchartz.com/weekly/43009/Global/[/url]


*I presume that NS figures were adjusted at some point between last update and today, hence 11,000 units difference. This will be corrected on the next update. Edit: adjusted as promised 

Last edited by Kristof81 - on 22 November 2017