US imports decreased 66% from $4.4 billion (1929) to $1.5 billion (1933), and exports decreased 61% from $5.4 billion to $2.1 billion. GNP fell from $103.1 billion in 1929 to $75.8 billion in 1931 and bottomed out at $55.6 billion in 1933. Imports from Europe decreased from a 1929 high of $1.3 billion to just $390 million during 1932, while US exports to Europe decreased from $2.3 billion in 1929 to $784 million in 1932. Overall, world trade decreased by some 66% between 1929 and 1934.

How many dollars did the US imports decrease by in 1933 from 1929?
A: 2900000000

By 1474, cannons had been introduced in Mdina. Other extensive preparations for an attack were made in the 1480s, when the fortifications were once again improved under the direction of Sicilian military engineers. At this point, some buildings in Rabat were demolished to clear the fortifications' line of fire. By 1522, the fortifications were being modernized with the construction of embrasures. However, the walls were still regarded as obsolete, since they lacked bastions and could not resist bombardment from modern artillery. Most of the medieval walls of Mdina were gradually dismantled between the 1530s and 1720s, when the city's fortifications were being upgraded by the Hospitallers. One of the most significant visible remnants of the medieval fortifications is the Greeks Gate and the surrounding curtain walls, which still retains its medieval form apart from the outer portal which was built in the 18th century. Parts of the double walls, including the remains of two gun loops, still stand between the gate and the Torre dello Standardo. Most of the northern and eastern walls date back to the medieval period, although some sections were rebuilt by the Hospitallers. The northern ramparts contain a medieval wall tower, while the remains of Byzantine antemurals and the foundations of a late 15th-century artillery platform have been found in the eastern walls.

How many years after cannons had been introduced in Mdina were the fortfications modernized with construction embrasures?
A: 48

In 1466, perhaps 40,000 people died of the plague in Paris. During the 16th and 17th centuries, the plague was present in Paris around 30 per cent of the time. The Black Death ravaged Europe for three years before it continued on into Russia, where the disease was present somewhere in the country 25 times between 1350 and 1490. Plague epidemics ravaged London in 1563, 1593, 1603, 1625, 1636, and 1665, reducing its population by 10 to 30% during those years. Over 10% of Amsterdams population died in 1623–1625, and again in 1635–1636, 1655, and 1664. Plague occurred in Venice 22 times between 1361 and 1528. The plague of 1576–1577 killed 50,000 in Venice, almost a third of the population. Late outbreaks in central Europe included the Italian Plague of 1629–1631, which is associated with troop movements during the Thirty Years War, and the Great Plague of Vienna in 1679. Over 60% of Norways population died in 1348–1350. The last plague outbreak ravaged Oslo in 1654.

How many years was the Plague in Europe before it ever went into Russia?
A:
3