Thus while the primacy of Lagos grew in relation to the secondary city, it did not rise as much as in Togo with respect to the domestic urban network. Instead, there was a discernible increase in the population within existing urban centres. Nigeria is more illustrative of a multipolar situation. These examples shed light on the different stages of urbanisation in the region. The growth rate peaked in 1981 (2%) before starting to decline. There was a short acceleration in growth at the beginning of the 2000s (the annual average growth rates for the 1990s and 2000s are similar).