Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
For End of Fiscal Years past 1980 that also have as % of GDP Low-High of 83.4-84.4, and a Debt Held By Public ($Billions) smaller than 7,552 what would be the average Gross Debt in $Billions undeflated Treas. in said years?

### Inputs:
table_name: table, columns: ['End of Fiscal Year', 'Gross Debt in $Billions undeflated Treas.', 'as % of GDP Low-High', 'Debt Held By Public ($Billions)', 'as % of GDP (Treas/MW, OMB or OMB/MW)', 'GDP $Billions OMB/BEA est.=MW.com']

### Response:
SELECT AVG Gross Debt in $Billions undeflated Treas. FROM table WHERE End of Fiscal Year > 1980 AND as % of GDP Low-High = 83.4-84.4 AND Debt Held By Public ($Billions) < 7,552