Task: Table-QA (source dataset: FinQA)

Task: 
You are given a table containing structured data and a natural language question referring to the table. Your goal is to analyze the table and provide an accurate and concise answer based on the given data.

Instructions:
1. Understand the Table: Examine the structure, headers, and data in the table. Identify relevant columns and rows related to the question.
2. Interpret the Question: Determine whether the question requires direct retrieval, aggregation, comparison, sorting, filtering, or inference.
3. Extract the Answer: Use logical reasoning and numerical operations (if necessary) to derive the correct response from the table.
4. Format the Answer: No explanation, return the answer in a structured JSON format: {"answer": <answer>}. If the question cannot be answered due to missing or ambiguous data, return a JSON response with {"answer": null}.

Table:
| in millions of dollars at year end                                                   | contractual obligations by year 2010   | contractual obligations by year 2011   | contractual obligations by year 2012   | contractual obligations by year 2013   | contractual obligations by year 2014   | contractual obligations by year thereafter   |
|:-------------------------------------------------------------------------------------|:---------------------------------------|:---------------------------------------|:---------------------------------------|:---------------------------------------|:---------------------------------------|:---------------------------------------------|
| long-term debt obligations ( 1 )                                                     | $ 47162                                | $ 59656                                | $ 69344                                | $ 28132                                | $ 34895                                | $ 124830                                     |
| lease obligations                                                                    | 1247                                   | 1110                                   | 1007                                   | 900                                    | 851                                    | 2770                                         |
| purchase obligations                                                                 | 1032                                   | 446                                    | 331                                    | 267                                    | 258                                    | 783                                          |
| other long-term liabilities reflected on citi 2019s consolidated balance sheet ( 2 ) | 34218                                  | 156                                    | 36                                     | 35                                     | 36                                     | 3009                                         |
| total                                                                                | $ 83659                                | $ 61368                                | $ 70718                                | $ 29334                                | $ 36040                                | $ 131392                                     |

Question:
in 2010 what was the ratio of the non-us pension plans , discretionary contributions to the postretirement benefit plans


pre_text: contractual obligations the following table includes aggregated information about citigroup 2019s contractual obligations that impact its short- and long-term liquidity and capital needs .
the table includes information about payments due under specified contractual obligations , aggregated by type of contractual obligation .
it includes the maturity profile of citigroup 2019s consolidated long-term debt , leases and other long-term liabilities .
citigroup 2019s contractual obligations include purchase obligations that are enforceable and legally binding for citi .
for the purposes of the table below , purchase obligations are included through the termination date of the respective agreements , even if the contract is renewable .
many of the purchase agreements for goods or services include clauses that would allow citigroup to cancel the agreement with specified notice ; however , that impact is not included in the table ( unless citigroup has already notified the counterparty of its intention to terminate the agreement ) .
other liabilities reflected on citigroup 2019s consolidated balance sheet include obligations for goods and services that have already been received , uncertain tax positions , as well as other long-term liabilities that have been incurred and will ultimately be paid in cash .
excluded from the following table are obligations that are generally short-term in nature , including deposit liabilities and securities sold under agreements to repurchase .
the table also excludes certain insurance and investment contracts subject to mortality and morbidity risks or without defined maturities , such that the timing of payments and withdrawals is uncertain .
the liabilities related to these insurance and investment contracts are included on the consolidated balance sheet as insurance policy and claims reserves , contractholder funds , and separate and variable accounts .
citigroup 2019s funding policy for pension plans is generally to fund to the minimum amounts required by the applicable laws and regulations .
at december 31 , 2009 , there were no minimum required contributions , and no contributions are currently planned for the u.s .
pension plans .
accordingly , no amounts have been included in the table below for future contributions to the u.s .
pension plans .
for the non-u.s .
pension plans , discretionary contributions in 2010 are anticipated to be approximately $ 160 million .
the anticipated cash contributions in 2010 related to the non-u.s .
postretirement benefit plans are $ 72 million .
these amounts are included in the purchase obligations in the table below .
the estimated pension and postretirement plan contributions are subject to change , since contribution decisions are affected by various factors , such as market performance , regulatory and legal requirements , and management 2019s ability to change funding policy .
for additional information regarding citi 2019s retirement benefit obligations , see note 9 to the consolidated financial statements. .
post_text: ( 1 ) for additional information about long-term debt and trust preferred securities , see note 20 to the consolidated financial statements .
( 2 ) relates primarily to accounts payable and accrued expenses included in other liabilities in citi 2019s consolidated balance sheet. .
label: 2.22222
qa: answer: 2.22
explanation: in 2010 there was $ 2.22 in the non-us pension plans , discretionary contributions per $ 1 in postretirement benefit plans
ann_text_rows: 16
18
steps: op: divide1-1
arg1: 160
arg2: 72
res: 2.22
program: divide(160, 72)
gold_inds: text_16: pension plans , discretionary contributions in 2010 are anticipated to be approximately $ 160 million .
text_18: postretirement benefit plans are $ 72 million .
exe_ans: 2.22222
tfidftopn: text_12: pension plans .
program_re: divide(160, 72)
model_input: text_16
pension plans , discretionary contributions in 2010 are anticipated to be approximately $ 160 million .
text_17
the anticipated cash contributions in 2010 related to the non-u.s .
text_18
postretirement benefit plans are $ 72 million .