Marriage is an almost universal rite of passage, so common across countries and cultures that there are no known societies where it doesn't exist. Sadly, however, sometimes marriages don't work out, for whatever reason. Divorce rates are calculated using available census data from each country. Dividing the number of divorces in a given year by total population yields the crude divorce rate. However, this doesn't take into account that the divorce rate is measured as a percentage of the total population, not in relation to the total number of marriages. Where possible, i.e. there is data available, the divorce rate is taken alongside the marriage rate to come to paint a more accurate picture about a country's rate of divorce.
