Answer based on context:

The labour force of Greater Sydney Region in 2016 was 2,272,722 with a participation rate of 61.6%. It was made up of 61.2% full-time workers, 30.9% part-time workers, and 6.0% unemployed individuals. The largest reported occupations are professionals, clerical and administrative workers, managers, technicians and trades workers, and community and personal service workers. The largest industries by employment across Greater Sydney are Health Care and Social Assistance with 11.6%, Professional Services with 9.8%, Retail Trade with 9.3%, Construction with 8.2%, Education and Training with 8.0%, Accommodation and Food Services 6.7%, and Financial and Insurance Services with 6.6%. The Professional Services and Financial and Insurance Services industries account for 25.4% of employment within the City of Sydney.

Which industry employs more people across Greater Sydney, retail trade or construction?
retail trade