受給できる週は、収入ではなく、お住まいの地域の失業率と
過去52週間のうちに何時間働いたかによって変わってきます。
何時間働いたかが分かれば期間は算出できますので、
サービスカナダのウェブサイトをじっくり読んでみてください。
How long can I receive EI?
You can receive EI from 19 weeks up to a maximum of 45 weeks, depending on the unemployment rate in your region at the time of filing your claim and the amount of insurable hours you have accumulated in the last 52 weeks or since your last claim, whichever is shorter.
http://srv129.services.gc.ca/eiregions/eng/postalcode_search.aspx
http://www.servicecanada.gc.ca/eng/ei/types/regular.shtml#long
Table 3 – Number of weeks of benefits that will be paid based on the number of hours of insurable employment and the regional rate of unemployment