As we can learn from the graph, the ownership of private cars varies from year to year. In the year of 1990, there are only two cars among 100 families, but in the year of 1995, it is 10, and it goes up dramatically to 30 in 2000. Generally speaking, it involves an upward trend.

　　There are three reasons for the change. To begin with, people’s income has been improved, more and more families can afford cars; in addition to it, the price of cars has been brought down sharply; last but not the least, various measures to stimulate consumption taken by our government can’t be ignored. All these factors result in the rapid change in the ownership of private cars.

　　To sum up, with the further development of our economy, there is no doubt that more and more families will have their own cars.

　　我们可以从图中得知，私家车的所有权每年都在变化。在1990年，有100间家庭只有两辆车，但在1995年，它是10，它在2000年会大幅上升至30。一般来说，它处于一个上升的趋势。

　　这个改变有三个原因。首先，人们的收入得到了提高，越来越多的家庭能够买得起汽车;另外，汽车的价格大幅下降;最后但并非最不重要的，我们政府采取的各种刺激消费的措施是不容忽视的。所有这些因素导致私家车的所有权的快速变化。

　　综上所述，随着我国经济的进一步发展，越来越多的家庭将拥有自己的汽车，这是毫无疑问的。