A bar graph is illustrated below, depicting a comparison in the popularity of 5 distinct types of transportation utilized by children to travel to school in two separate time periods, namely 1990 and 2010.
Upon initial observation, it is evident that walking in 2010 had predominated as the most desired form of commuting overall, peaking at just above an impressive 12 million trips per year. Following closely behind by a marginal difference of 1 million trips per year is car passenger in 1990, emerging as the second-most preferred mode of transportation overall.
Moreover, as delineated by the graph, all forms of transportation accounted for a considerably higher frequency of trips in 1990 compared to two decades later, with the exception of car passenger. This is highlighted in cycling, where the total number of trips in 1990 reached roughly 6 million per year, outperforming that in 2010 by three-fold. Interestingly, car passengers surged dramatically to 11 million trips per year within the 20-year period, equating to more than twice of its initial value in 1990.
On the other hand, it is also worth noticing that despite car passengers constituting the fewest number of trips in 1990, cycling proved to be even less favorable in 2010 by approximately 2 million trips per year.