Detail Sampel

The pie charts illustrate the proportion of visitors to the US from various countries namely Canada, Mexico, China and others countries between 1988 and 1992 Overall, Canada had the highest percentage of visitors in all years, while the figure for China increased sharply. By contrast the proportion of visitors from the other countries dropped dramatically, whereas the data of Mexico fluctuated slightly over the period In the first year, Canada had the highest figure with 53% which was slightly more than twice as high as that of Mexico, while the percentage of visitors from the remaining countries was 12%, followed by the data of China, at only 10%. Over 6-year substances , Canada continued leading the top with 48% in 1990 before slipping back to 40% in 1992. By contrast, the figure for China increased sharply to 28% and 26% in 1990 and reached its peak at 30% in 1992. The proportion of visitors from the other countries continued to fall sharply to 1% in 1992, whereas there was a gradual increase in the data of Mexico to 26%