(percentage share by economic level)
                  1980      1984       1988

Lowest Fifth      5.1        4.7        4.6
Second Fifth     11.6       11.0       10.7
Third Fifth      17.5       17.0       16.7
Fourth Fifth     24.3       24.4       24.0
Highest Fifth    41.6       42.9       44.0

This table shows the statistics of income distrubition during the Reagan administration and Reaganomics. This illustrates how the income gap between the rich and the poor widened. In other words, the share of income received by the highest fifth increased, whereas the share received by the lowest fifth decreased.

Information gathered from www.wise.virginia.edu and a sample AP Government test my teacher had given to us.