By contrast, an ordinary seamen in the Royal Navy received 19s per month to be paid in a lump sum at the end of a tour of duty, which was around half the rate paid in the Merchant Navy. However, corrupt officers would often "tax" their crews' wage to supplement their own, and the Royal Navy of the day was infamous for its reluctance to pay. From this wage, 6d per month was deducted for the maintenance of Greenwich Hospital, with similar amounts deducted for the Chatham Chest, the chaplain and surgeon. Six months' pay was withheld to discourage desertion. That this was insufficient incentive is revealed in a report on proposed changes to the RN Admiral Nelson wrote in 1803; he noted that since 1793 more than 42,000 sailors had deserted. Roughly half of all RN crews were pressganged and these not only received lower wages than volunteers but were shackled while the vessel was docked and were never permitted to go ashore until released from service.