In 1506, about 65% of the state income was produced on overseas activity. The monopoly of trade remained profitable until 1570, and strengthened the equity and credit capacity of Portugal. The share of the Crown's total trade with Asia in 1506 amounted to about 25% and increased steadily to 50% or more, but never entirely displaced the private traders: the trade monopoly was accompanied always by free trade in other products such as textiles, weapons, paper and salted fish, such as Bacalhau.