A study (PDF) by the Nielsen Company found an increase in the use of and time of use of the Internet in the United States in the first quarter of 2009. The study found that 163,110,000 Americans 2 years and older used the Internet monthly, an increase of 3.2 percent from the first quarter 2008. The study also found that the average American 2 years or older spent 29:15 hours a month on the Internet, up 4.6 percent from first quarter of 2008. The amount of time spent on the Internet by age was: 5:21 hours for 2-11 years old, 11:32 hours for 12-17 years old, 14:19 hours for 18-24 years old, 31:37 hours for 25-34 years old, 42:35 hours for 35-44 years old, 39:27 hours for 45-54 years old, 35:49 hours for 55-64 years old, and 28:34 hours for 65 years and older. Finally, the study found that 131,102,000 Americans 2 years and older watch video on the Internet, for an average of 3:00 hours, in the quarter. The figures were calculated using Nielsen’s Internet panels, which are measured electronically.