However, this was due to the influx of approximately 200,000 Crimean Tatars &ndash; a number equivalent to approximately 10% of Crimeas 1989 population – who arrived in Crimea after 1989 and whose population in that region increased by a factor of 6.4 from 38,000 to 243,400 between 1989 and 2001. Collectively, the net population loss in the regions of Ukraine outside the westernmost regions was 2,759,200 people or 6.6% of the 1989 population. The total population of these regions in 2001 was 39,186,100.
Question: How many years did it take for the population in Crimea to increase from 38000 to 243400?
Answer: 12