To clarify this, the EI premium rate has been set according to legislation by the EI commission each year. To the extent that the premium turned out to be too high relative to the actual outcome of the economy and the unemployment rate, a surplus between premiums and program expenditures would have occurred.
The premium revenues have flowed into the CRF, and the legislation also requires that the benefits, whatever they may cost, are paid from the CRF. At the end of the day, if there is a difference in the year between the two, you have a surplus or a deficit that gets recorded in the EI account and added to or subtracted from the running total.