You would have to look on the form where you entered your CCA last year.
This TurboTax FAQ shows how to get a PDF with all your forms in it in TurboTax Online: https://turbotax.community.intuit.ca/community/tax-return-print-save/help/how-do-i-save-a-pdf-copy-of-my-tax-return-in-the-cd-download-edition-of-turbotax/00/873700