The 2010 census recorded the total population at 1,699,435. In January 2013, the Qatar Statistics Authority estimated the country's population at 1,903,447, of which 1,405,164 were males and 498,283 females. At the time of the first census, held in 1970, the population was 111,133. The population has tripled in the decade to 2011, up from just over 600,000 people in 2001, leaving Qatari nationals as less than 15% of the total population. The influx of male labourers has skewed the gender balance, and women are now just one-quarter of the population.