How Long Should Most people Brush?

Speaking of brushing your teeth, you may think this is where you do not need help. But most people just brush one-third of the suggested time. Take a look at this ::
 
Most people brush:
 
Two minutes a day
14 minutes a week
12.1 hours a year
38.5 days in their lifetime
 
Most people should brush:
 
Six minutes a day
42 minutes a week
36.4 hours per year
There are 122 days in their life