Rice accounted for 31.6 percent of energy sources in 2012, down from 42 percent in 1998. Daily calories obtained from rice also decreased 25 percent from 834.2 kcal to 629.4 kcal. People now consume less than two bowls of rice a day.
The main reason is a growing variety of available food and the resulting dietary changes. But we must stick with rice as it gives energy and moreover staple for us.