 The distribution pattern in the 2002 census was similar to those of the 1980 and 1991 censuses, but the share of the two main groups has declined.Indo-Guyanese made up 51.9% of the total population in 1980, but by 1991 this had fallen to 48.6%, and then to 43.5% in the 2002 census.Those of African descent increased slightly from 30.8% to 32.3% during the first period (1980 and 1991) before falling to 30.2% in the 2002 census.