In the context of this series of interconnected finance-related queries and the additional information provided by the pretext, table data, and posttext from a company's financial filings, please provide a response to the final question. This may require extracting information from the context and performing mathematical calculations. Please take into account the information provided in the preceding questions and their answers when formulating your response:
Context: ( 3 ) refer to note 2 201csummary of significant accounting principles and practices 201d for further information . 13 . employee benefitsp y defined contribution savings plans aon maintains defined contribution savings plans for the benefit of its employees . the expense recognized for these plans is included in compensation and benefits in the consolidated statements of income . the expense for the significant plans in the u.s. , u.k. , netherlands and canada is as follows ( in millions ) : . <table class='wikitable'><tr><td>1</td><td>years ended december 31</td><td>2018</td><td>2017</td><td>2016</td></tr><tr><td>2</td><td>u.s .</td><td>$ 98</td><td>$ 105</td><td>$ 121</td></tr><tr><td>3</td><td>u.k .</td><td>45</td><td>43</td><td>43</td></tr><tr><td>4</td><td>netherlands and canada</td><td>25</td><td>25</td><td>27</td></tr><tr><td>5</td><td>total</td><td>$ 168</td><td>$ 173</td><td>$ 191</td></tr></table> pension and other postretirement benefits the company sponsors defined benefit pension and postretirement health and welfare plans that provide retirement , medical , and life insurance benefits . the postretirement health care plans are contributory , with retiree contributions adjusted annually , and the aa life insurance and pension plans are generally noncontributory . the significant u.s. , u.k. , netherlands and canadian pension plans are closed to new entrants. .
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Question: what portion of total benefit expense for plans in u.s. in 2018?
Answer: