I am using statistics released by the government. Usually, the delay is over a year. The most recent statistics are from 2011-12.
The two major performance measures are response time and the quantity of information disclosed. Over the past 10 years, the best rate of performance has been 69% for cases processed within 30 days. That figure is now 55.5%. What that means is 7 out of 10 people used to receive the information requested within 30 days. Today, that number is 5.5 people out of 10.
The percentage for disclosure was as follows. Basically, in 40% of cases, all the documentation was disclosed. Now that figure stands at around 20%. That means, then, that 4 out of 10 pages used to be received, whereas today, it is 2 out of 10.