NETS activity has been steadily increasing over the years. In 2015, we performed over 1100 transports, which is more than a doubling in our activity in the last decade. 
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The majority of babies are referred from metropolitan hospitals, and we undertake such transports using our dedicated road ambulance. We generally undertake transports <200km by road (ie- as far South as Peel and as far East as Northam) but will sometimes go by road to Bunbury (180km) if RFDS flights are delayed.
About 18% of retrievals are from country WA. While most country retrievals are from the Southwest, NETS retrieves babies as far afield as Broome (some 2500km from Perth.)