http://www.telecom.paper.nl/news/art...113059&nr=

The African-American demographic group in the US used over 1,200 mobile voice minutes on average per month during Q3 2005, according to a report from Telephia, provider of performance measurement information to the mobile industry. Hispanic cellphone users followed closely with 979 total voice minutes used on average per month in Q3. Historical trending illustrates maximum mobile usage growth for African-Americans and Hispanics as compared to other demographic groups, increasing 10 and 13 percent, respectively, between Q1 and Q3 2005. Consumers who fell under the mixed racial background category used 888 voice minutes, while Asian or Pacific Islander consumers used 845 minutes. Both white/caucasian and Native American/Alaskan mobile phone consumers logged 632 and 623 total voice minutes used, respectively. Consumers aged 18-24 use their cell phones the most, spending more than 1,300 total voice minutes on average per month. According to Telephia, mobile phone usage by the younger demographic is 71 percent more than the total average minutes used by all age groups. The number of calls they send and receive also outpaced other demographic age groups, claiming an average of 340 calls per month in Q3 2005. In terms of data usage, young adults sent and received 126 SMS data messages on average per month, more than double the amount for 25-36 year-old cell phone users, who had the second highest average for SMS messages sent and received with 56.