Columns: Year | Total | Less than a year | One year | Two years | Three years | Four years | 5–9 years | 10–14 years | 15–19 years | 20–24 years | 25 and more | Unknown
2004 | 1 293 | 54 | 149 | 181 | 129 | 97 | 249 | 221 | 118 | 48 | 45 | 2 | 2005 | 1 445 | 67 | 143 | 186 | 172 | 148 | 272 | 228 | 137 | 52 | 40 | 0 | 2006 | 1 480 | 74 | 152 | 191 | 172 | 177 | 351 | 147 | 128 | 46 | 41 | 1 | 2007 | 1 558 | 149 | 208 | 162 | 177 | 206 | 334 | 128 | 106 | 50 | 38 | 0 | 2008 | 1 026 | 73 | 141 | 121 | 103 | 146 | 258 | 72 | 62 | 24 | 26 | 0 | 2009 | 1 555 | 122 | 213 | 190 | 170 | 170 | 419 | 109 | 67 | 55 | 40 | 0 | 2010 | 1 453 | 124 | 215 | 202 | 170 | 129 | 377 | 86 | 68 | 37 | 45 | 0 | 2011 | 1469 | 129 | 211 | 159 | 154 | 139 | 384 | 104 | 77 | 49 | 63 | 0