Yoox Net-a-Porter has posted a boost in its full-year profits and sales bolstered by increased customer numbers and strong demand across all product lines.

The luxury etailer recorded a 9% rise in adjusted EBITDA to €169.2m (Ā£151.3m) in the year to December 31 2017, driven by a 17% increase in net revenues to €2.1bn (Ā£1.8bn).

The online retailer’s adjusted net income for the year declined 26% to €51.2m during the period, which the retailer attributed to non-cash amortisation and incentive scheme costs.

Yoox Net-a-Porter customers placed 9.5 million orders the during the period, up from 8.4 million the previous year, while its number of active customers rose 7% to 3.1 million.

However, the average order valued dipped from 2% to €328 (Ā£293), which the retailer attributed to unfavourable exchange rates.

Net-A-Porter mobile sales comprised over half of total group sales during the period for the first time.

Chief executive officer Federico Marchetti said: ā€œThe YNAP teams’ hard work in 2017 built a business that is bigger and stronger than ever before.

ā€œOur significant investments in technology and logistics ensure that the group will continue to thrive and remain the world’s leading online luxury destination.

ā€œLooking ahead, we are excited about the growth opportunities in the Gulf region, the joint venture with Mohammed Alabbar really kicks in this year. Our on-the-ground operations will offer Middle Eastern customers and unbeatable online luxury experience.ā€