The slaves were then marched to trading stations along the coast where a European agent, who resided at the station, inspected them and negotiated their purchase. The inspection was humiliating and degrading procedure. Men, women, and children usually appeared stark naked and underwent the close scrutiny of the agent and sometimes a physician. After the trauma of capture and the shame of inspection, the slaves were regimented into crowded quarters at the trading station or "factory" to wait for the next shipment to leave. They had to be supervised very closely as many tried to escape and others tried to commit suicide. When a ship was ready to sail, the slaves were chained together and marched down to the shore. There they were bundled into large canoes and were paddled through the crashing breakers to where the slave ship was waiting. Slaves have told how they began the voyage in trepidation, being frightened by the sight of the "white devils" who, they had heard, liked to eat Africans. Then the long voyage commenced. Conditions here were even more crowded than at the "factory." Slaves were generally kept below deck with no sunshine or fresh air. They were crowded so close together that there was never any standing room and often not even sitting room. Again, they had to be supervised closely as many tried to starve themselves to death or to jump overboard. However, the greatest loss of slave property was due to disease, The ship's captain feared that disease would whittle away his profits, and, even more, he worried that it would attack him and his crew. When the passage was completed, and the West Indies had been safely reached, the slave again had to undergo the same kind of degrading inspection and sale which had occurred in Africa, but this time he had to experience the torment in a strange and distant land. While the economic profits in the slave trade were great, so were the human losses. Statistics concerning the slave trade are often inaccurate or missing. However, it is generally agreed that at least fifteen million Africans, and perhaps many more, became slaves in the New World. About nine hundred thousand were brought in the sixteenth century, three million in the seventeenth century, seven million in the eighteenth century, and another four million in the nineteenth century. The mortality rate among these new slaves ran very high. It is estimated that some five percent died in Africa on the way to the coast, another thirteen percent in transit to the West Indies, and still another thirty percent during the three-month seasoning period in the West Indies. This meant that about fifty percent of those originally captured in Africa died either in transit or while being prepared for servitude.