Table:
text: Senate of Chile
Current composition Senate of Chil
Current composition Senate of Chil
Constituency Region Name_ Party Last_elected_
1 Arica and Parinacota , Tarapacá Fulvio Rossi PS 2009
1 Arica and Parinacota , Tarapacá Jaime Orpis Bouchon UDI 2009
2 Antofagasta Carlos Cantero Ojeda Ind. 2005
2 Antofagasta José Antonio Gómez Urrutia , (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 , (Vice-President, March 12, 2008-March 13, 2009) RN 2009
4 Coquimbo Gonzalo Uriarte UDI 2005
4 Coquimbo Jorge Pizarro Soto , (President, March 11, 2010–March 15, 2011; March 20, 2013-present) PDC 2005
5 Valparaíso Ignacio Walker PDC 2009

Question: What is the difference in years between constituencies 1 and 2 of the Senate of Chile?