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The bar chart shows that American has changed a modern electronic devices for the total numer of hours per month from 1980 to 2015. Overall, it is clear that radio rate has occupied the highest level between 1980 and 1990 per month compared to others. However, since 2000, computer and smartphone have significantly increased the total number of hours per month. In case of television has moderately risen until 2010 per month. At the beginning of the period, radio used had the highest media until 1990, but the radio had rapidly reduced the rate of the total hours' per month. In contrast, television had gradually gone up and computer and smartphone have popular modern technology in 2015. However, there is not smartphone until 1995, the device had only about 60 hours per month. In case of computer, growth in 2005 overtakeed the radio's per hours and recorded much more the rate. |