Assistant Professor Eugene Tan, a political observer, pointed out that the sharp rise in the number of Permanent Residents between 2005 and 2009 reflects the open immigration policy of the Singapore government but at the same time, also draws concerns from Singaporeans on the influx of new immigrants. ?The policies were meant to address the concerns of the government that if we do not increase population, there will be long-term challenges with an ageing population, low birth rate and longer mortality. However, these have also fuelled worries by Singaporeans that with the flux of foreigners arriving on our shores, the personal space of Singaporeans are being infringed upon.?