The graph gives information about the number of food items per year in fast food hotels and normal dish hotels. Overall, the food items in sitdown restruant increases steadily but the trend for fast food meals rapidly increases over the year and then, reached at peak rate.
Moreover, the number of meals in 1970 remained for both type of restraunt. After the passage of 10 years the numebr of meals for sitdown hotels are more among fast food hotels as the value for fastfood meals is 25 and for sitdown meals is 35. At that point, there is a sharp rise in the fastfood meals and this incresed with greater rate. Furthuremore, the number of sitdown meals also increases but not fast increase as fastfood.
In conclusion, nowadays, there is a trend for fastfood meals, that is why demand for fastfood meals lead to the incresed number of fastfood dish varieties.
