Question 1198714
The factor is 1.0241 every year.
Time x=0 for year 2012.

{{{highlight_green(y=5.62(1.0241)^x)}}}


The Doubling-Time
{{{2=1*1.0241^x}}}
{{{2=1.0241^x}}}

{{{log((2))=x*log((1.0241))}}}

{{{x=log((2))/log((1.0241))}}}

{{{highlight(x=29.1)}}}------Doubling Time in years;  about 29 years 5 and a half weeks