I said "arguably the best", and based on the facts and arguments I put forward, I believe it has been adequately proven."Best" is not an objective measurement. It is a subjective opinion, of which you are trying to use a single, biased statistic to support the whole while claiming you're being objective. It boggles my mind that you can't seem to recognize the flaw here.
Here's another data set if you like (although this one does not take into account the economic times, so it is similar to yours in terms of relevance).
The other thing that is not captured is the fact that the Federal government was greatly cutting transfer payments during and after the recession in the mid 1990's, while they were maintained and increase during the 2008/09 recession and thereafter.