In fact, they -increase- spending.
Of course, there are some who would argue that increasing wages is not indicative of a growing economy..... though, they are the same people who claim that providing tax breaks to the rich bolsters the economy, and leads to higher wages.
I think these figures are a bit misleading though. I'd venture to guess that under the Republicans, the top 5% does better than the NYT table shows, but through deregulation and tax loopholes, are more able to hide their income, during those administrations. :P Then when a Democrat takes office, they add some regulation back in, forcing the rich to declare more of their income.....
(Oh and Agema, apparently to Republicans, linking to Slate is something akin to how I might feel if they linked from O'Reilly..... Even if you are just trying to show them numbers that were compiled directly from the Economic Report to the President, complete with link to said document.
)