In 2007, the total number of registered and enrolled nurses estimated by the Nursing and Midwifery Labour Force Survey was 305,834, an increase of 12% since 2003. The nursing workforce continued to age between 2003 and 2007; the proportion of nurses aged 50 years or over increased from 28% to 33%. The number of full time equivalent nurses per 100,000 population increased by 8% since 2003, and the profession continued to be predominantly female, with females comprising 90% of employed nurses in 2007.