The data collection method is to count every person resident in Namibia on the census ' reference night , wherever they happen to be .
After Namibian independence the first Population and Housing Census was carried out in 1991 , further rounds followed in 2001 and 2011 .
The data collection method is to count every person resident in Namibian on the census ' reference night , wherever they happen to be .
After Namibian independence the first Population and Housing Census was carried out in 1991 , further rounds followed in 2001 and 2011 .