The 64% → 21% GDP Collapse
In 1960, agriculture contributed 64% of Nigeria's GDP. By 1970, the average for the decade was 55.8%. By 1976-1980, it had collapsed to 21.8%. By 1980, it was approximately 21%. This was not a gradual decline; it was a cliff. The oil boom of the 1970s caused a classic case of 'Dutch Disease': the naira appreciated due to petrodollar inflows, making Nigerian agricultural exports uncompetitive on world markets while making food imports cheap and attractive. Government spending shifted from agriculture to oil infrastructure, urban development, and import consumption. The share of industry in GDP actually declined from 42.4% in 1984 to 22% by 2008, while agriculture's share increased from 30.5% to 42.1% — but this later increase was not due to agricultural growth; it was due to the collapse of manufacturing and the statistical reweighting of a stagnant sector. The real agricultural output did not grow; the rest of the economy simply shrank around it.
