The following table shows the production of food grains in a country over the five years.
| Year | Production (in ten lakh tonnes) | |||
| Wheat | Rice | Maize | Other grains | |
| 2016-17 | 650 | 250 | 200 | 450 |
| 2017-18 | 800 | 440 | 240 | 400 |
| 2018-19 | 680 | 390 | 220 | 500 |
| 2019-20 | 700 | 400 | 260 | 480 |
| 2020-21 | 640 | 440 | 300 | 520 |
The difference between the average production (in ten lakh tonnes) of wheat and maize over the years is: