Overall, the ICO saw a 7% rise in the number of freedom of information complaints during the year.
The Attorney General's Department added that the ombudsman would not receive further funding to meet the additional demands of freedom of information complaints.
The job of fielding freedom of information complaints was transferred to the commonwealth ombudsman without any consultation or extra funding, Senate Estimates heard on Thursday.
The Information Commissioner's Office (ICO) received 1,922 freedom of information complaints about local authorities in 2011-12, accounting for 43% of the total number of complaints, according to the watchdog's latest annual report.
The document says that of the 4,633 freedom of information complaints during the year, those about local authorities were the most numerous, while central government accounted for 24%, health 11%, education 8%, and police and criminal justice 7%.
Each character breaks off, sometimes a line or word being finished by another singer before returning to unison or harmony, giving the effect of the three old men remembering bits of information, complaints and grumblings in real time".
The men planned to seek tens of thousands of dollars in additional bribes for other confidential information, the complaint said.
In demanding further information, the complaint suggests the attorney-general's office has yet to build its case.
Mr. Nguyen, who is cooperating with prosecutors, vetted prospective consultants, measuring their "ability and willingness" to give inside information, the complaint said.
To gain insider information, the complaint states, Spherix called consultants who worked at public companies before their employers released quarterly earnings.
A former worker said some letters amounted to "So-and-so cuts my lawn and does a good job," adding that the company made no attempt to verify the information, the complaint stated.
