Deducting employee absence days from gratuity

Dear sir/madam,

In terms of calculating gratuity, do they deduct the days I was absent from work?

Remember, these days while I was absent, the company deducted a day or days from my salary.

For example: if I am absent for a day from work without permission, the company deducts one day or even 3 days from my salary. For the 10 years I have worked, I have been absent for 21 days from work, and all these days they deducted from my salary.

Will they still deduct my gratuity?

Absence was a result of being sick and not being able to bring a sick leave.

Thanks!