Year wise study crop under single crop approach 1971-72 to 1980-81
During 1971 to 1982, Scheme data in Gujarat were collected from 40 clusters of villages and sample of 480 sample farmers of different farm sizes by cost accounting method. (12 farmers from each cluster) Single crop approach was followed and Clusters were changed every year.
| Sr. No. | Year | Main Study Crop | No. of Cluster | Other Study Crop 1 | No. of Cluster | Other Study Crop 2 | No. of Cluster | Total Cluster |
| 1 | 1971-72 | Bajra | 40 | – | – | – | – | 40 |
| 2 | 1972-74 | Groundnut | 30 | Bajra | 10 | – | – | 40 |
| 3 | 1974-76 | Cotton | 22 | Bajra | 10 | Cotton | 8 | 40 |
| 4 | 1976-77 | Jowar | 20 | Bajra | 10 | Cotton | 10 | 40 |
| 5 | 1977-78 | Bajra | 22 | Cotton | 10 | Groundnut | 8 | 40 |
| 6 | 1978-79 | Groundnut | 32 | Bajra | 8 | – | – | 40 |
| 7 | 1979-80 | Cotton (LS) | 20 | Groundnut | 10 | Bajra | 10 | 40 |
| 8 | 1980-81 | Cotton (LS) | 20 | Bajra | 10 | Groundnut | 10 | 40 |