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:
| year       | amount    |
|:-----------|:----------|
| 2019       | $ 681218  |
| 2020       | 682556    |
| 2021       | 2549621   |
| 2022       | 494186    |
| 2023       | 434902    |
| thereafter | 1767383   |
| total      | $ 6609866 |

Question:
what percent of long-term debt was paid off in 2021?


pre_text: on april 19 , 2018 , we took delivery of norwegian bliss .
to finance the payment due upon delivery , we had export financing in place for 80% ( 80 % ) of the contract price .
the associated $ 850.0 million term loan bears interest at a fixed rate of 3.92% ( 3.92 % ) with a maturity date of april 19 , 2030 .
principal and interest payments are payable semiannually .
on april 4 , 2018 , we redeemed $ 135.0 million principal amount of the $ 700.0 million aggregate principal amount of outstanding 4.75% ( 4.75 % ) senior notes due 2021 ( the 201cnotes 201d ) at a price equal to 100% ( 100 % ) of the principal amount of the notes being redeemed and paid the premium of $ 5.1 million and accrued interest of $ 1.9 million .
the redemption also resulted in a write off of $ 1.2 million of certain fees .
following the partial redemption , $ 565.0 million aggregate principal amount of notes remained outstanding .
interest expense , net for the year ended december 31 , 2018 was $ 270.4 million which included $ 31.4 million of amortization of deferred financing fees and a $ 6.3 million loss on extinguishment of debt .
interest expense , net for the year ended december 31 , 2017 was $ 267.8 million which included $ 32.5 million of amortization of deferred financing fees and a $ 23.9 million loss on extinguishment of debt .
interest expense , net for the year ended december 31 , 2016 was $ 276.9 million which included $ 34.7 million of amortization of deferred financing fees and a $ 27.7 million loss on extinguishment of debt .
certain of our debt agreements contain covenants that , among other things , require us to maintain a minimum level of liquidity , as well as limit our net funded debt-to-capital ratio , and maintain certain other ratios and restrict our ability to pay dividends .
substantially all of our ships and other property and equipment are pledged as collateral for certain of our debt .
we believe we were in compliance with our covenants as of december 31 , 2018 .
the following are scheduled principal repayments on long-term debt including capital lease obligations as of december 31 , 2018 for each of the next five years ( in thousands ) : .
post_text: we had an accrued interest liability of $ 37.2 million and $ 31.9 million as of december 31 , 2018 and 2017 , respectively .
8 .
related party disclosures transactions with genting hk and apollo in december 2018 , as part of a public equity offering of nclh 2019s ordinary shares owned by apollo and genting hk , nclh repurchased 1683168 of its ordinary shares sold in the offering for approximately $ 85.0 million pursuant to its new repurchase program .
in march 2018 , as part of a public equity offering of nclh 2019s ordinary shares owned by apollo and genting hk , nclh repurchased 4722312 of its ordinary shares sold in the offering for approximately $ 263.5 million pursuant to its then existing share repurchase program .
in june 2012 , we exercised our option with genting hk to purchase norwegian sky .
we paid the total amount of $ 259.3 million to genting hk in connection with the norwegian sky purchase agreement as of december 31 , 2016 and no further payments are due. .
label: 0.38573
qa: answer: 38.6%
explanation: to find the amount of long-term debt was paid off in 2021 , one has to take the payment in 2021 and divide it by the total amount of long-term debt payments .
ann_table_rows: 3
7
ann_text_rows: 3
steps: op: divide1-1
arg1: 2549621
arg2: 6609866
res: 38.6%
program: divide(2549621, 6609866)
gold_inds: table_3: year the 2021 of amount is 2549621 ;
table_7: year the total of amount is $ 6609866 ;
text_3: principal and interest payments are payable semiannually .
exe_ans: 0.38573
program_re: divide(2549621, 6609866)
model_input: table_1
year the 2019 of amount is $ 681218 ;
table_3
year the 2021 of amount is 2549621 ;
table_7
year the total of amount is $ 6609866 ;