| Year,Urban,Rural | |
| 2000,35.4601753281331,99.5449966143072 | |
| 2001,37.6075221814522,93.4059502065895 | |
| 2002,42.0683832943453,87.9952373452018 | |
| 2003,45.379997267514,87.1916771916999 | |
| 2004,38.1457014837296,71.6314919309621 | |
| 2005,45.5071886193555,71.6776869982883 | |
| 2006,43.2589972537092,64.8587390891612 | |
| 2007,46.309143798704,63.454890749375 | |
| 2008,46.2213306203727,60.7409417576011 | |
| 2009,49.8410989697017,59.1276141513603 | |
| 2010,53.0282866003688,55.6548312821778 | |
| 2011,52.4288179304188,50.7880037390745 | |
| 2012,53.6330481344538,47.821538774647 | |
| 2013,54.533015360056,46.4410678718589 | |
| 2014,54.3987925728262,43.3612497354249 | |
| 2015,58.2513307191666,44.2989110139464 | |
| 2016,58.4234962622287,41.785514697694 | |