Build a garch model using the following monthly change data for Mexico. Use R DATE INFLATION ene-05 4.54 feb-05 4.27 mar-05 4.39 abr-05 4.6 may-05 4.6 jun-05 4.33 jul-05 4.47 ago-05 3.95 sep-05 3.51 oct-05 3.05 nov-05 2.91 dic-05 3.33 ene-06 3.94 feb-06 3.75 mar-06 3.41 abr-06 3.2 may-06 3 jun-06 3.18 jul-06 3.06 ago-06 3.47 sep-06 4.09 oct-06 4.29 nov-06 4.09 dic-06 4.05 ene-07 3.98 feb-07 4.11 mar-07 4.21 abr-07 3.99 may-07 3.95 jun-07 3.98 jul-07 4.14 ago-07 4.03 sep-07 3.79 oct-07 3.74 nov-07 3.93 dic-07 3.76 ene-08 3.7 feb-08 3.72 mar-08 4.25 abr-08 4.55 may-08 4.95 jun-08 5.26 jul-08 5.39 ago-08 5.57 sep-08 5.47 oct-08 5.78 nov-08 6.23 dic-08 6.53