This table contains statistics that describe the duration of low income spells experienced by Canadian taxfilers in an eight-year period. A low income spell refers to a period in which a person stays in low income. It can last one year or several years consecutively. The length of the spell is referred to as its duration and is measured in years. The low income measure (LIM) is used to identify low income taxfilers. The LIM threshold is calculated as half of the median of the adjusted family after-tax income of all taxfilers and their family members. This table uses two different types of LIM: the variable LIM is based on the median total income re-calculated each year, while the fixed LIM is based on the median total income in 2002 adjusted yearly by the all-items Consumer Price Index.