According to the the latest American Community Survey data, the period from 2007 to 2014 saw a statistically significant increase in income inequality – represented by the Gini index – in 32 states. The Gini Index represents the concentration of income in a given state or country, in a range from 0 to 1. A higher Gini index indicates greater inequality – where income is concentrated among a relatively few individuals or households; a lower Gini score represents more even income distribution.
The ACS 1-Year reports the Gini index for households in table B19083 as the middle point of a 90% confidence interval, along with a corresponding margin of error. The visualization below calculates significant change in Gini index scores from 2007-2014 – shifts outside the margin of error. In 32 states, the lower end of the range of the 2014 Gini estimate was greater than the upper range of the 2009 Gini Index estimate. In the remaining states, there was no statistically significant change from 2009 to 2014: in these cases, taking into account the margin of error, the estimates from 2009 overlapped with those from 2014.
Gini index is a commonly used economic measure, reported by organizations such as the World Bank and CIA, in its World Factbook.
The Web Mapping Service (WMS) for the Connecticut State Data Center and MAGIC, a service that provides access to the 1934 aerial photography layer and historical maps for use within GIS applications and is utilized within a number of the interactive map mash-ups for MAGIC will need to be offline part of today (1/27/2016) to resolve connectivity issues with the server. This server experienced an unplanned outage and we are working to resolve this issue ASAP.
During this WMS server update period there may be periods of time when the WMS service could be temporarily unavailable or load times for layers may be impacted.
This maintenance will identify and address additional performance issues with the WMS server and we apologize for the inconvenience any short duration outages of the server may cause.
For users needing access to aerial photography layers via a WMS, the Connecticut Environmental Conditions Online (CT ECO) site offers a WMS with several aerial photography layers which can be accessed at: http://cteco.uconn.edu/map_services.htm