in the same report, there is a graph that shows the prices correlation b/w OCR, CCR and RCR.
http://www.ura.gov.sg/pr/graphics/2009/pr09-67b.pdf
in the '06 to '08 period, the CCR obviously pulled away from the trend, whilee RCR and OCR continue to maintain a constant gap throughout from '04 to 3Q08.
In the recent 4 qtrs, the significant pullback of the CCR plus the outburst of the prices in the OCR allows the gap to be sort of normalised back to the pre-boom time of '06/07. However, the recovery in RCR is slow, such that we now even see OCR matching or even higher prices in RCR. ==> which really correlates to what we are almost seeing now (compare launch of Cento/100Ts vs Woodleigh; rough guage here)
In my view, i feel RCR definitely still has more room to go up, plus if the recovery is sustained and CCR sees a maintained growth, RCR shouldn't be where it is now.