The statistics for apprenticeship numbers are published online at this link: https://www.gov.uk/government/statistical-data-sets/fe-data-library-apprenticeships#apprenticeship-starts-and-achievements
The number of seafarer ratings trained using apprenticeships is steadily increasing in each year since the able seafarer (deck) apprenticeship was introduced in August 2015 bringing the total number of seafarers trained through this route to 70. The annual breakdown is in the table below:
2017/18 (Q1 &2 only)
Able Seafarer (Deck)
The statistics for the full 2017/18 year have not yet been published so only the first 2 quarters have been included.