INSTITUCIONES MIEMBROS
| Año | Bancos | Sociedades de Ahorro y Crédito | Bancos Cooperativos |
| 1999 | 14 | 1 | 0 |
| 2000 | 13 | 1 | 0 |
| 2001 | 12 | 1 | 0 |
| 2002 | 12 | 1 | 0 |
| 2003 | 12 | 1 | 0 |
| 2004 | 13 | 0 | 0 |
| 2005 | 12 | 0 | 0 |
| 2006 | 12 | 0 | 0 |
| 2007 | 12 | 0 | 0 |
| 2008 | 11 | 0 | 0 |
| 2009 | 12 | 1 | 6 |
| 2010 | 11 | 1 | 6 |
| 2011 | 12 | 2 | 6 |
| 2012 | 11 | 2 | 6 |
| 2013 | 11 | 3 | 6 |
| 2014 | 11 | 4 | 6 |
| 2015 | 12 | 4 | 6 |
| 2016 | 13 | 4 | 6 |
| 2017 | 13 | 4 | 6 |
| 2018 | 13 | 4 | 6 |
| 2019 | 13 | 4 | 6 |
| 2020* | 13 | 4 | 6 |