A 1994 Canadian government health survey found that 73% of Canadian mothers initiated breastfeeding, up from 38% in 1963. It has been speculated that the gap between breastfeeding generations in Canada contributes to the lack of success of those who do attempt it: new parents cannot look to older family members for help with breastfeeding since they are also ignorant on the topic. Indigenous women in Canada are particularly affected by their loss of traditional breastfeeding knowledge, which taught mothers to breastfeed for at least 2 years and up to 4–5 years after birth, as a result of settler colonialism; Indigenous mothers now initiate breastfeeding and exclusively breastfeed for at least 6 months at significantly lower rates than non-Indigenous mothers in Canada. Western Canadians are more likely to breastfeed; just 53% of Atlantic province mothers breastfeed, compared to 87% in British Columbia. More than 90% of women surveyed said they breastfeed because it provides more benefits for the baby than does formula. Of women who did not breastfeed, 40% said formula feeding was easier (the most prevalent answer). Women who were older, more educated, had higher income, and were married were the most likely to breastfeed. Immigrant women were also more likely to breastfeed. About 40% of mothers who breastfeed do so for less than three months. Women were most likely to discontinue breastfeeding if they perceived themselves to have insufficient milk. However, among women who breastfed for more than three months, returning to work or a previous decision to stop at that time were the top reasons.