Found this from google. No idea if it is accurate but it would be nice to have a sticky where we build up unit sales data. Anyway:
2010: 5,675 units (4,223 GranTurimso/GranCabrio, 1,452 Quattroporte)
2009: 4,489 units
2008: 8,586 units
2007: 7,496 units (5,455 Quattroporte, 1,779 GranTurismo)
2006: 5,734 units
2005: 5,568 units
2004: 4,590 units
2003: 2,839 units
FY2001: 1,869 units
FY2000: 2,027 units
1999: 1,538 units
1998: 620 units
2010: 5,675 units (4,223 GranTurimso/GranCabrio, 1,452 Quattroporte)
2009: 4,489 units
2008: 8,586 units
2007: 7,496 units (5,455 Quattroporte, 1,779 GranTurismo)
2006: 5,734 units
2005: 5,568 units
2004: 4,590 units
2003: 2,839 units
FY2001: 1,869 units
FY2000: 2,027 units
1999: 1,538 units
1998: 620 units