Using actual and projected data from 2000 through 2050, the number of millions of white non-Hispanics in a certain country's non-institutional population 16 years and over can be modeled by W(x)0.145x + 153.3, and the millions in the remainder of this population can be modeled by R(x)1.716x + 68.1, where x is the number of years after 2000. If growth continues according to these models, in what year will the populations be equal?