The given picture illuminates the precentages of different technologies that use households from 1997 to 2001.
Overall, the most noticeable feature is that CD player usage recorded the highest figures, wherease DVD had the lowest. While all devices increased, despite the DVD player. Internet started with only 10% in 1997, then we can see a little upward in 1996 reaching 20%. In 1999 thayed the same and over the next decades increased steadily reaching 60%. Telephone instead started rose by 1996, which was 20% risen to 30% and then 40%. In the end of decade reaching over the 70%. Computer and CD player has some similarities, as starting point was high than other three ones. But computer lost popularity while CD player rose to 80% reaching the top of the tracking trend.
In contrast, internet and DVD changed positions by 2001 with 10% difference, telephone and CD was the most popular devices. computer was popular but gave his position to telephone keeping.