Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Constituency | Region | Name | Party | Last elected |
| --- | --- | --- | --- | --- |
| 1 | Arica and Parinacota\nTarapacá | Fulvio Rossi | PS | 2009 |
| 1 | Arica and Parinacota\nTarapacá | Jaime Orpis Bouchon | UDI | 2009 |
| 2 | Antofagasta | Carlos Cantero Ojeda | Ind. | 2005 |
| 2 | Antofagasta | José Antonio Gómez Urrutia\n(Vice-President, March 11, 2010–March 15, 2011; March 20, 2013-present) | PRSD | 2005 |
| 3 | Atacama | Isabel Allende | PS | 2009 |
| 3 | Atacama | Baldo Prokurica Prokurica\n(Vice-President, March 12, 2008-March 13, 2009) | RN | 2009 |
| 4 | Coquimbo | Gonzalo Uriarte | UDI | 2005 |
| 4 | Coquimbo | Jorge Pizarro Soto\n(President, March 11, 2010–March 15, 2011; March 20, 2013-present) | PDC | 2005 |
| 5 | Valparaíso | Ignacio Walker | PDC | 2009 |
| 5 | Valparaíso | Lily Pérez | RN | 2009 |
| 6 | Valparaíso | Ricardo L. Weber | PPD | 2009 |
| 6 | Valparaíso | Francisco Chahuan | RN | 2009 |
| 7 | Santiago | Guido Girardi Lavín\n(President, March 15, 2011–March 20, 2012) | PPD | 2005 |
| 7 | Santiago | Jovino Novoa Vásquez\n(President, March 13, 2009–March 11, 2010) | UDI | 2005 |
| 8 | Santiago | Ena von Baer | UDI | 2005 |
| 8 | Santiago | Soledad Alvear Valenzuela | PDC | 2005 |
| 9 | O'Higgins | Alejandro García-Huidobro | UDI | 2005 |
| 9 | O'Higgins | Juan Pablo Letelier Morel\n(Vice-President, March 15, 2011–March 20, 2012) | PS | 2005 |
| 10 | Maule | Ximena Rincón | PDC | 2009 |
| 10 | Maule | Juan Antonio Coloma Correa | UDI | 2009 |
| 11 | Maule | Andrés Zaldívar | PDC | 2009 |
| 11 | Maule | Hernán Larraín Fernández | UDI | 2009 |
| 12 | Biobío | Alejandro Navarro Brain\n(Vice-President, March 20, 2012–March 20, 2013) | MAS | 2005 |
| 12 | Biobío | Hosain Sabag Castillo | PDC | 2005 |
| 13 | Biobío | Mariano Ruiz-Esquide Jara | PDC | 2005 |
| 13 | Biobío | Víctor Pérez Varela | UDI | 2005 |
| 14 | Araucanía | Jaime Quintana | PPD | 2009 |
| 14 | Araucanía | Alberto Espina Otero | RN | 2009 |
| 15 | Araucanía | Eugenio Tuma | PPD | 2009 |
| 15 | Araucanía | José García Ruminot | RN | 2009 |
| 16 | Los Ríos\n(plus District 55) | Carlos Larraín Peña | RN | 2005 |
| 16 | Los Ríos\n(plus District 55) | Eduardo Frei Ruiz-Tagle\n(President, March 11, 2006-March 12, 2008) | PDC | 2005 |
| 17 | Los Lagos\n(minus District 55) | Camilo Escalona Medina\n(President, March 20, 2012–March 20, 2013) | PS | 2005 |
| 17 | Los Lagos\n(minus District 55) | Carlos Kuschel Silva | RN | 2005 |
| 18 | Aisén | Patricio Walker | PDC | 2009 |
| 18 | Aisén | Antonio Horvath Kiss | RN | 2001 |
| 19 | Magallanes | Carlos Bianchi Chelech\n(Vice-President, March 13, 2009–March 11, 2010) | Ind. | 2005 |
| 19 | Magallanes | Pedro Muñoz Aburto | PS | 2005 |
Question:
what is the difference in years between constiuency 1 and 2?
Answer:
4 years