Use the following pieces of context to answer the question at the end. If you don't know the answer, just say that you don't know, don't try to make up an answer.

USE OF PROCEEDS

Not applicable.

PROFILE

Illinois is home to about 12.8 million residents, making it the sixth-largest state by population. It has the fifth-largest economy among US states with an estimated gross domestic product of about $1 trillion.

METHODOLOGY

than most states and will likely continue to do so given a weak population trend. A slowdown in revenue, caused for example by a moderate national or global recession, could be more challenging in Illinois than in other states given the relative weakness of the state's balance sheet.

The upgrade to A3 reflects continued improvement in several of the state's credit metrics. Like other states, Illinois enjoyed solid tax revenue growth over the past couple years, expanding its capacity to build financial reserves and increase payments towards outstanding liabilities. The state is on track to close fiscal 2023, which ends June 30, with further growth in reserves that are already at their strongest level in over a decade. The state is also increasing payments to its pension

The rating balances the current trend in these metrics with underlying challenges that will remain in place for some time. These challenges include heavy long-term liability and fixed cost burdens that constrain the state's financial flexibility and contribute to a weak financial position compared to other states, despite the recent improvement in fund balance. On top of this, the Illinois economy has for the past decade expanded at a slower pace than most states and will likely continue to do

Question: What is the population of Illinois
Helpful Answer:
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