True, although the spending is down from 1985-1990 levels even without the per-student calculation. It doesn't seem to be for explicitly partisan reasons either, since the UC system was well-funded under Deukmejian (a Republican) and then had its funding cut under Wilson (also a Republican).
Interestingly, most of the faster-than-population enrollment surge is in the past 5 years. If enrollments had grown from 1970 to 2000 in line with the results of the 1970 census versus the 2000 census, they would've been 124,000 in 2000, which is not that much lower than the actual 141,000 (that's only a 15% growth in enrollment rates over 30 years).
Interestingly, most of the faster-than-population enrollment surge is in the past 5 years. If enrollments had grown from 1970 to 2000 in line with the results of the 1970 census versus the 2000 census, they would've been 124,000 in 2000, which is not that much lower than the actual 141,000 (that's only a 15% growth in enrollment rates over 30 years).