The given line graph illustrates how many International conferences which were in the three cities.
Overall, what standed out from the that was notable upward trend conferences in the city C, while city A experienced a substantial fall over period. Another remarkable was the city B despite the fluctuons
Looking details in the city C there was conferences approximately 10 in 1975, then again dramatically increase approximately 20 by 1985. In 1975 slightly rise approximately 28 in the town B, after decade conferences jumped approximately 30 in the city A. In 2005 in the town B significantly rise, and in the same year city A reached pick approximately 30.
By contrast there was slightly down approximately 27 in the city B by 1975, while city A halved approximately 20 same year. I the 1995 city A and B slightly dropped approximately 27 to 26, for another decade in the town C dramatically went down. At the end of period city B slightly down, while city A plunged and both failed to succeed
