It's a poor area where per capita income runs 28% below the national average.

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Per capita income has fallen in comparison with the national average by nearly 20%.

FORBES: California's Third Brown Era

In the 14 years before TABOR, per capita income growth in Colorado was below the national average.

FORBES: The Anachronism Of State Income Taxes

Per capita income there is 26 percent below the national average, and 27 percent of its residents are foreign-born, more than twice the national average, according to the U.S. Census Bureau.

CNN: STORY HIGHLIGHTS

In the 14 years after TABOR, per capita income growth was almost 20% (19.3%) higher than the national average.

FORBES: The Anachronism Of State Income Taxes