pre_text: Liquidity risk Our policy is to maintain a strong capital base so as to maintain investor, creditor and market confidence and to sustain future development of the business. Our liquidity needs are affected by many factors, some of which are based on the normal on-going operations of the business, and others that relate to the uncertainties of the global economy and the semiconductor industry. Although our cash requirements fluctuate based on the timing and extent of these factors, we believe that cash generated from operations, together with our principal sources of liquidity are sufficient to satisfy our current requirements, including our expected capital expenditures in 2020. We intend to return cash to our shareholders on a regular basis in the form of dividend payments and, subject to our actual and anticipated liquidity requirements and other relevant factors, share buybacks. The following table summarizes the Company’s contractual and other obligations as at December 31, 2019. Total short-term lines of credit amounted to €150 million at December 31, 2019. The amount outstanding at December 31, 2019 was nil and the undrawn portion totaled €150 million. The standby revolving credit facility of €150 million with a consortium of banks will be available through December 16, 2023. For the majority of purchase commitments, the Company has flexible delivery schedules depending on the market conditions, which allows the Company, to a certain extent, to delay delivery beyond originally planned delivery schedules.
table: Total Less than 1 year 1-5 years More than 5 years
table: Accounts payable 119,712 119,712 — —
table: Income tax payable 34,599 34,599 — —
table: Accrued expenses and other payables 149,843 149,843 — —
table: Lease liabilities 24,261 6,977 14,726 2,558
table: Pension liabilities 7,734 333 2,544 4,857
table: Purchase obligations:
table: Purchase commitments to suppliers 100,694 99,546 1,148 —
table: Capital expenditure and other commitments 43,692 40,745 2,947 —
table: Total contractual obligations 480,535 451,755 21,365 7,415
question: Analyse this data from a financial earnings document. What is  Purchase obligations expressed as a percentage of  Total contractual obligations?