Without getting into too much detail sdcellar is correct about using one comp. My statement on the market wasa generalization for SD county and there could be differences in micro areas. Perhaps MM didnt start going up in 1997 as much as other areas and 2000 was a catch up year. Also need to be careful when using percentages as they can be much smaller in later years despite involving much bigger dollars.

Here is a hypothetical example of the way things went down in some areas:

1999 100K
2000 +50% = 150K
2001 +33% = 200K
2002 +25% = 250K
2003 (parabolic year) +40% = 350K
2004 (parabolic year) +40% = 490K

In this case the 40% in 2003 and 2004 were much more significant than 50% catch up year in 1999