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The image depicts a bar chart titled "Average Delay For Different US Airports" with the x-axis labeled "Average Delay in Minutes" ranging from 0 to 40 and the y-axis labeled "Period" divided into four time periods: 1996-2000, 2001-2005, 2006-2010, and 2011-2015. Four cities are represented: Dallas, New York, Chicago, San Francisco. For the period 1996-2000: Dallas' delay is approximately 7 mins, New York's is 20 mins, Chicago's is 30 mins, San Francisco's is 35 mins. For 2001-2005: Dallas' delay is 10 mins, New York's is 18 mins, Chicago's is 25 mins, San Francisco's is 27 mins. For 2006-2010: Dallas' delay is 12 mins, New York's is 22 mins, Chicago's is 15 mins, San Francisco's is 30 mins. For 2011-2015: Dallas' delay is 15 mins, New York's is 25 mins, Chicago's is 20 mins, San Francisco's is 18 mins.
Given the complexity of the image, the above description may not be entirely accurate.
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The bar chart provides information on flights which was delayed at four separate airports in the United States for multiple timeframes. Overall, the proportion of on-time departures in all airports decreased after hitting its highest point between 2001 and 2005, except for San Francisco airport where the amount of delayed flights from 2006 to 2010 increased.
The standard number of flights that departed on time between 1996 and 2005 had reached a peak of around 18% to nearly 30% and around 32% to almost 40% at Dallas and New York airports, respectively. After hitting the peak from 2001 to 2005, two airports experienced a downward trend, plummeting to 6% in Dallas and around 28% in New York.
Between 1996 and 2005, two airports had the opposite trend while Chicago dropped significantly from around 33% to just under 20%; San Francisco saw a jump from just over 5% to over 10%. Chicago then continued to fall to around 11% before climbing back to 15% at the end of the period. Whereas, San Francisco increased to a peak of almost 30% before slightly decreasing to around 22% from 2011 to 2015.
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