But the economic challenges have multiplied over the years.
Forays to lesser depths have multiplied over the years.
The friendship that he and the American poet Robert Bly struck up gave him a readership in the US which multiplied over the years.
Cattle from neighbouring regions, allowed to roam freely in Uruguayan territory, multiplied over the years until their numbers reached the millions.
Those small differences, multiplied over 10 years, could leave the White House surplus estimates for the decade as much as $400 billion lower than the Congressional surplus estimate, even if both were to work with a capped baseline.
Global investing has since surged in popularity, and the number of international mutual fund choices has multiplied over the years.
13 The investigation for factors responsible for obesity onset and response to antiobesity treatments started in the early 1960s, 16, 17 and the number of studies in this field has multiplied over the years.
Although some have questioned how many people would want to wear such devices, a recent report by Juniper Research indicated that the market for smart glasses and other next-generation wearable tech could be worth $1.5bn £940mm) by 2014 and would multiply over following years.
