All my tickets are purchased in Singapore and travel out from Singapore. The PPS Value seems to match closely to what I guessed I spent on air tickets in the past year. Probably, the system can track Sin purchased tickets better.

Noted from SQ web site that surcharges are not included in PPS Value.

The new system may have still some bugs. For example after logging out, I noticed the time logged onto the website is the same as the current clock time; if clock time 7.00 am, the total logged in time is 7 hours.