Detail Sampel

The line chart illustrates the number of internation coferences in three cities. Overall, it can be seen that most cities had decrease trend over 45 years, with the exception of city. The number of International conferences in city C started with lowest figure, but it was the highest statistic over 45 years, peaking at roughly 30 ones. From 1965 to 2010, the number of International conferences in city A and B fluctuated, hitting low of under 20 and 25 conferences, respectively. From 1965 to 1975, those of city A decreased from 35 to 20 conferences, roughy decreasing twofold. By contrast, the number of International conferences in city C had a sharp increase from 1965 to 1995, increasing from 0 to under 30 conferences. However, in the 1995-2010 period, it fluctuated, and finally peaking at roughly 30 conferences.