Under the CURRENT rules, your average will be calculated based on a divisor starting from you first started paying PRSI. So yes, during your college years.
However you are obviously a long way off retirement (I gather) so the rules will probably change by the time you are due a State Pension. Indeed there is a proposal (still unclear if it will be implemented) to change the rules in 2020. That proposal would simply provide a State Pension of 1/30th for each year of PRSI contribution, so a full pension with 30 years on contribution.
The Gov is due to publish a Pensions strategy document early in the New Year. So that may bring more clarity.