Complex sentence: By 1999 Colombia's GDP decreased by 4.2%, the worst economic crisis since the Great Depression, bringing unemployment up to 18% and poverty increasing by 57.5% over a five-year period.
Split into simpler sentences: By 1999 Colombia's GDP decreased by 4.2%, the worst economic crisis since the Great Depression. Bringing unemployment up to 18% and poverty increasing by 57.5% over a five-year period.