The sum of premiums paid accumulated at an annual compound rate of interest for a 10-year period during the Accumulation Phase beginning with the later of the Rider Activation Date or the most recent reset date. The rate of interest is:
• 5% for the Rider Year in which no withdrawal is taken
• 0% for the Rider Year in which a withdrawal is taken.
The initial Premium Accumulation Value is determined as follows:
• If the Rider Activation Date is the same as the policy date, it is equal to the initial premium.
• If the Rider Activation Date is after the policy date, it is equal to the policy value as of the Rider Activation Date.