The main reason is a glut in supply caused by the threefold rise in Vietnam's production in the past five years.
Willem Wagenaar, who works in the museum's education department, tackling hate speech and abuse across society, says there was a threefold rise in Islamophobic incidents last year.
The high court has just ruled that the threefold rise in tuition fees does not breach would-be students' human rights.
She links the habit of seeking short-term reward, as learned on screen, with obesity, gambling addiction and the threefold rise in Ritalin prescriptions over the past 10 years.
It also noted that investment in this sector, which employs half to two-thirds of Africa's population, needs to be substantially increased, especially considering that a threefold rise in the continent's demand for food is expected by 2050.
By the same token, the 14-year rule of Vladimir Putin, heir to what remained, has been bolstered by a threefold rise in the oil price.Now the oil price is falling again.
Shares in Société Générale soared Wednesday after the French bank surprised some investors with a more than threefold rise in second-quarter profit, helped by the strong performance of its retail bank.
As protests continue to be organised around England by students angry at the planned almost threefold rises in university tuition fees, the Welsh last week announced that they would not be falling in behind Westminster's proposals.
Shares in the French bank Société Générale rose Wednesday after it surprised some investors with a more than threefold rise in its profit in the second quarter, helped by the strong performance of its consumer banking operations, but its stock slipped Thursday.
Chart 1 shows how world GDP growth, led by the West, came to be associated with even faster growth in world trade.The rest of the world communist, socialist, or just plain poor also grew, but more slowly: at 2.2% a year on average, or a threefold rise in income per head.
