Divorce demography is the study of the demographic factors that impact divorce as a social phenomenon according to Wikipedia. Information about divorces can generally be obtained from the census data published by governmental statistics offices. Another measure of divorces is the divorce to marriage ratio, which is the number of divorces to the number of marriages in a given year (the ratio of the crude divorce rate to the crude marriage rate). For example, if there are 550 divorces and 1,000 marriages in a given year in a given area, the ratio would be one divorce for every two marriages, e.g. a ratio of 0.55 (55%). However, this measurement compares two unlike populations, those who can marry and those who can divorce.
