The line graph shows the total number of international conferences held in three cities from 1965 to 2010. Overall, The figures for City A and City B saw a noticeable fall, whereas the one for City C rose dramatically. Interestingly, despite ranking first in the initial year, the figure for City A fluctuated over years and ended up being the lowest among the other two in the final year.
Focusing first on the two categories that witnessed a decrease,City A and City B. A more pronounced decrease was seen in City A: the figure first fell to 20 in 1975 from the initial 35, despite reversing to 30 in 1985, the figure subsequently had fell to 20 in 2010. Having ranked first in the beginning of the period, City A was at the bottom of the list at the end. In the latter City, 31 conferences were held in 1965, a number which then declined steadily to 25 in the final year.
A substantial increase was observed in the figure for City C, the number of international conferences taking place stood at 0 in 1965. Thirty years later, this number had increased to a staggering 27: however, although the trend was not maintained and began falling and reached 24 in 2005, after rebounding, it climbed gradually to 29 in 2010 and topped the list in the final year.
