Every Persona game in Japan (in case anyone else asks for another one...):
{1996-09-20} [PS1] Persona - 391,556
{1997-06-27} [PS1] Persona [PlayStation the Best] - 17,935 **
{2003-01-23} [PS1] Persona [PSOne Books] - ???
{2009-04-29} [PSP] Persona - 156,205
{2010-06-03} [PSP] Persona [Atlus Best Collection] - ???
{2010-09-16} [PSP] Persona [Best Selection] - ???
{1999-06-24} [PS1] Persona 2: Innocent Sin - 274,798
{2000-09-14} [PS1] Persona 2: Innocent Sin [PlayStation the Best] - 3,470 **
{2011-04-14} [PSP] Persona 2: Innocent Sin - 102,714
{2000-06-29} [PS1] Persona 2: Eternal Punishment - 200,103
{2011-11-22} [PS1] Persona 2: Eternal Punishment [Atlus Best Selection] - ???
{2012-05-17} [PSP] Persona 2: Eternal Punishment - 35,920 **
{2006-07-13} [PS2] Persona 3 - 210,319
{2007-04-19} [PS2] Persona 3 FES - 165,471
{2010-08-05} [PS2] Persona 3 FES [PlayStation 2 the Best] - 7,773 **
{2009-11-01} [PSP] Persona 3 Portable - 208,877
{2011-08-25} [PSP] Persona 3 Portable [PSP the Best] - 39,233 **
{2008-07-10} [PS2] Persona 4 - 294,214
{2010-08-05} [PS2] Persona 4 [PlayStation 2 the Best] - 43,981 **
{2012-06-14} [PSV] Persona 4 Golden - 233,523
{2012-07-26} [PS3] Persona 4 Arena - 184,997
{2012-07-26} [360] Persona 4 Arena - 11,498
??? = Unknown sales
** = No updated sales (for some is just the first week)
Source: Famitsu