There was not anything of significance before 2009 -- a partial seasonal shifting of points at OKW effective 1996:
1. There was the two year point shift for 2010 and 2011 (first change came in a 2010 chart issued in early 2009). that lowered weekend days (Fri and Sat) and raised weekdays. It took two years to do the shift because the total change exceeded 20% per night and they cannot change any night more than 20% a year, but basically total points needed for a week in any room remain unchanged.
2. The 2011 charts also reflected a change for AKV that created more standard view rooms and lowered the number of savanna view rooms, with the result that nightly savanna view point costs went up for many times of the year to offset the increase in the number of standard view rooms. That one raised points for a view category and lowered them for another but did not raise an issue of increasing total points.
3. The 2012 charts showed a change for VGC with a significant increase in the number of premier and choice season days and a decrease in adventure and magic season days, but not an issue of raising total points.
4. The 2013 point charts reflected a significant change for SSR, where the treehouses went up about 15% year round and all other room categories had minor decreases to offset that increase. That reallocation comes close to type of reallocation
DVC attempted to do with 2020
point chart, but on a much smaller scale, and there was not really an issue of changing total points for the resort. The 2013 charts also showed a change for BLT, where several rooms were reclassified as standard view from Theme Park view and the points taken out of those rooms were added to others elsewhere to offset the decrease.
5. The 2014 point charts changed Aulani by decreasing points needed for standard view GV's and increased ocean view GVs a little in all seasons and also shifted 14 days from choice to magic season, all apparently the result of the removal of a GV from the inventory and possibly some other rooms from inventory, and also possibly a change of some rooms from ocean view to lower point views.
6. The 2015 point charts reflected changes at Aulani made to add the hotel rooms to the inventory. At Vero some ocean view inn rooms were reclassified as lower-point cost garden view rooms, with the excess points going mainly to the 3BR's in dream and choice seasons. Thus to some extent that was also similar to the 2020 point change attempt, although its purpose was simply to change the classification of certain rooms.
7. The 2016 charts were released with changes to Aulani significantly lowering the number of choice and magic season days, while raising the number of premier and adventure season days.
8. The 2017 charts made a major change to SSR by creating standard and preferred room categories, where before all were considered the same category. The result was to raise the points for rooms in two of the areas (Congress Park and Springs) while lowering then for rooms in the rest of the areas. That involved lowering and raising points between the same-sized rooms.
9. For the 2018 BWV chart, points went up a little in Premier season for preferred view (pool/garden and boardwalk view) 2BRs with no noticeable offset elsewhere on the chart, but DVC explained it, stating three rooms were changed from preferred to standard view and the excess points created by that move were added to the premiere season for 2BRs.
Personal view is that at least some of those changes starting with the 2010 point charts should not have been made, and I actually thought someone would sue over the SSR changes -- before the treehouse change, they were the same cost as the SSR 2BRs, and had been sold by emhasizing they had three bedrooms but would cost the same points per night as the SSR 2BRs; as to the preferred/standard change at SSR, there was nothing in the POS that even hinted that DVC could create preferred and standard categories with different point structures, without having included those classifications in the POS..