of 2012, the statistical category of "single mothers" (defined as never married at the time of the birth) encompassed 28.3% of mothers, the category "divorced" (i.e. mothers who were unmarried at the time of birth, but had been previously married during their lives) encompassed 1%, while for 10% of mothers the marital status was unknown ("not stated"). There are, however, very significant differences by province/territory; for example in 2012, 77.8% of births in Nunavut were listed to "single mothers", by contrast, less than 20% of mothers in Ontario were listed in this category. Latest data from the Quebec Statistical Institute shows that as of 2015, in Quebec, 63% of children were born to unmarried women. In Canada, legal issues regarding cohabitation are very complicated by the fact that family law in this regard differs by province/territory, which is very confusing to the public, especially as this contrasts to criminal law which is the same across Canada, as well as to marriage and divorce law, which is also the same across the country, under the 1986 Divorce Act (Canada) (although provinces/territories have jurisdiction over some marital issues, including the solemnization of marriage, spousal and child support, and property division). The marital status of Canadians also varies by province/territory: in 2011, 46.4% of the population aged 15 and over was legally married; ranging from the lowest percentage of married people being in Nunavut (29.7%), Northwest Territories (35.0%), Quebec (35.4%), and Yukon (37.6%); to highest being in Newfoundland and Labrador (52.9%), Prince Edward Island (51.7%), Ontario (50.3%) and Alberta (50.2%). While today Quebec is known for liberal family formation and cohabitation, this is a recent development: during the first half of the 20th century, family life in the province was conservative and strongly dominated by Roman Catholicism; before 1968, there was no provincial divorce legislation in Quebec, and spouses could only end their marriage if they obtained a private Act of Parliament. One of the explanations of the current high rates of cohabitation in Quebec is that the traditionally strong social control of the church and the Catholic doctrine over people's private relations and sexual morality has led the population to rebel against traditional and conservative social values. While some provinces were early to modernize family law, in others this only happened in the 1990s and the 21st century, such as in Alberta, through the Family Law Act (Alberta) which came into force