It depends where you live. In the USA they happen every 10 years, in some others only every 5 years.
The US Census is taken every ten years in the years ending in zero.
Federal census is taken every 10 years. Some regional census polls are taken more often, but the law is for every 10 years.
ever 10 years
We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.
In the United States, the census is conducted every 10 years. The next census will be in 2010.
Every ten years with the official United States census.
Every 10 years
A census would require data to be collected from 54000000 people.
The All India Wild Animal Census is done every four years. The census was last carried out in May 2014.
A census is held in Ireland every 5 years. The last was in 2011 and the next will be in 2016.
The first census of Alaska was taken in 1869. The census was taken at Sitka by the United States Army.
A Cencus must be taken every 10 years Unknown standard