In September 2014, the Chilean legislature approved a tax reform package that implemented a dual tax system, which was amended in January 2016.
Under previous rules, FCX’s share of income from Chilean operations was subject to an effective 35 percent tax rate allocated between income taxes and dividend withholding taxes.
Under the amended tax reform package, FCX’s Chilean operation is subject to the “Partially-Integrated System,” resulting in FCX’s share of income from El Abra being subject to progressively increasing effective tax rates of 35 percent through 2019 and 44.5 percent in 2020 and thereafter.
In November 2017, the progression of increasing tax rates was delayed by the Chilean legislature so that the 35 percent rate continues through 2021 increasing to 44.5 percent in 2022 and thereafter.
In 2010, the Chilean legislature approved an increase in mining royalty taxes to help fund earthquake reconstruction activities, education and health programs.
Mining royalty taxes at FCX’s El Abra mine were 4 percent for the years 2013 through 2017.
Beginning in 2018, and through 2023, rates moved to a sliding scale of 5 to 14 percent (depending on a defined operational margin).
Uncertain Tax Positions.
FCX accounts for uncertain income tax positions using a threshold and measurement criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return.
FCX’s policy associated with uncertain tax positions is to record accrued interest in interest expense and accrued penalties in other income and expense rather than in the provision for income taxes.
A summary of the activities associated with FCX’s reserve for unrecognized tax benefits for the years ended December 31 follows:
## Table 0 ##
The total amount of accrued interest and penalties associated with unrecognized tax benefits included in the consolidated balance sheets was $186 million at December 31, 2018, primarily relating to unrecognized tax benefits associated with royalties and other related mining taxes, $22 million at December 31, 2017, and $19 million at December 31, 2016.
The reserve for unrecognized tax benefits of $404 million at December 31, 2018, included $296 million ($147 million net of income tax benefits and valuation allowances) that, if recognized, would reduce FCX’s provision for income taxes.
Changes to the reserve for unrecognized tax benefits associated with current year tax positions were primarily related to uncertainties associated with FCX’s tax treatment of social welfare payments and cost recovery methods.
Changes in the reserve for unrecognized tax benefits associated with prior year tax positions were primarily related to uncertainties associated with royalties and other related mining taxes and AMT credit refunds.
Changes to the reserve for unrecognized tax benefits associated with the lapse of statute of limitations were primarily related to social welfare payments.
There continues to be uncertainty related to the timing of settlements with taxing authorities, but if additional settlements are agreed upon during 2019, FCX could experience a change in its reserve for unrecognized tax benefits.
FCX or its subsidiaries file income tax returns in the U. S.  federal jurisdiction and various state and foreign jurisdictions.
The tax years for FCX’s major tax jurisdictions that remain subject to examination are as follows:
## Table 1 ##
NOTE 12.
CONTINGENCIES Environmental.
FCX subsidiaries are subject to various national, state and local environmental laws and regulations that govern emissions of air pollutants; discharges of water pollutants; generation, handling, storage and disposal of hazardous substances, hazardous wastes and other toxic materials; and remediation, restoration and reclamation of environmental contamination.
FCX subsidiaries that operate in the U. S.  also are subject to potential liabilities arising under CERCLA and similar state laws that impose responsibility on current and previous owners and operators of a facility for the remediation of hazardous substances released from the facility into the environment, including damages to natural resources, in some cases irrespective of when the damage to the environment occurred or who caused it.
Remediation liability also extends to persons who arranged for the disposal of hazardous substances or transported the hazardous substances to a disposal site
Financial Objectives Our financial goals include competitive organic revenue growth and operating margin expansion, which we expect will further strengthen our balance sheet and total liquidity and increase value to our shareholders.
Accordingly, we remain focused on meeting the evolving needs of our clients while concurrently managing our cost structure.
We continually seek greater efficiency in the delivery of our services, focusing on more effective resource utilization, including the productivity of our employees, real estate, information technology and shared services, such as finance, human resources and legal.
The improvements we have made and continue to make in our financial reporting and business information systems in recent years allow us more timely and actionable insights from our global operations.
Our disciplined approach to our balance sheet and liquidity provides us with a solid financial foundation and financial flexibility to manage and grow our business.
We believe that our strategy and execution position us to meet our financial goals and to deliver long-term shareholder value.
Financial Reporting Segments We have two reportable segments, which are Integrated Agency Networks (“IAN”) and Constituency Management Group (“CMG”).
IAN is comprised of McCann, FCB, Lowe, IPG Mediabrands, our digital specialist agencies and our domestic integrated agencies.
CMG is comprised of a number of our specialist marketing services offerings.
We also report results for the “Corporate and other” group.
See Note 13 to the Consolidated Financial Statements for further information.
Principal Markets Our agencies are located in over 100 countries, including every significant world market.
Our geographic revenue breakdown is listed below.
## Table 2 ##
For further information regarding revenues and long-lived assets on a geographical basis for each of the last three years, see Note 13 to the Consolidated Financial Statements.
Sources of Revenue Our revenues are primarily derived from the planning and execution of multi-channel advertising, marketing and communications programs around the world.
Our revenues are directly dependent upon the advertising, marketing and corporate communications requirements of our existing clients and our ability to win new clients.
Most of our client contracts are individually negotiated and, accordingly, the terms of client engagements and the bases on which we earn commissions and fees vary significantly.
As is customary in the industry, our contracts generally provide for termination by either party on relatively short notice, usually 90 days.
Revenues for the creation, planning and placement of advertising are determined primarily on a negotiated fee basis and, to a lesser extent, on a commission basis.
Fees are usually calculated to reflect hourly rates plus proportional overhead and a mark-up.
Many clients include an incentive compensation component in their total compensation package.
This provides added revenue based on achieving mutually agreed-upon qualitative or quantitative metrics within specified time periods.
Commissions are earned based on services provided and are usually derived from a percentage or fee over the total cost to complete the assignment.
Commissions can also be derived when clients pay us the gross rate billed by media and we pay for media at a lower net rate; the difference is the commission that we earn, which we either retain in full or share with the client depending on the nature of the applicable services agreement.
Total AUM by Asset Class  (3)
## Table 3 ##
See accompanying notes immediately following these AUM tables.

<table><tr><td></td><td>2018</td><td>2017</td><td>2016</td></tr><tr><td>Balance at beginning of year</td><td>$390</td><td>$101</td><td>$110</td></tr><tr><td>Additions:</td><td></td><td></td><td></td></tr><tr><td>Prior year tax positions</td><td>100</td><td>302</td><td>5</td></tr><tr><td>Current year tax positions</td><td>14</td><td>6</td><td>28</td></tr><tr><td>Decreases:</td><td></td><td></td><td></td></tr><tr><td>Prior year tax positions</td><td>-86</td><td>-1</td><td>-3</td></tr><tr><td>Settlements with taxing authorities</td><td>-9</td><td>-17</td><td>—</td></tr><tr><td>Lapse of statute of limitations</td><td>-5</td><td>-1</td><td>-39</td></tr><tr><td>Balance at end of year</td><td>$404</td><td>$390</td><td>$101</td></tr></table>
<table><tr><td>Jurisdiction</td><td rowspan="2">Years Subject to Examination N/A</td><td rowspan="2">Additional Open Years 2014-2018</td></tr><tr><td>U.S. Federal</td></tr><tr><td>Indonesia</td><td>2008, 2011-2016</td><td>2017-2018</td></tr><tr><td>Peru</td><td>2012-2013</td><td>2014-2018</td></tr><tr><td>Chile</td><td>2016-2017</td><td>2018</td></tr></table>
<table><tr><td></td><td colspan="3">% of Total Revenue</td></tr><tr><td></td><td>2014</td><td>2013</td><td>2012</td></tr><tr><td>Domestic</td><td>55.5%</td><td>55.8%</td><td>54.7%</td></tr><tr><td>United Kingdom</td><td>9.1%</td><td>8.0%</td><td>8.2%</td></tr><tr><td>Continental Europe</td><td>10.7%</td><td>11.2%</td><td>11.8%</td></tr><tr><td>Asia Pacific</td><td>12.2%</td><td>12.2%</td><td>12.0%</td></tr><tr><td>Latin America</td><td>6.2%</td><td>6.5%</td><td>6.5%</td></tr><tr><td>Other</td><td>6.3%</td><td>6.3%</td><td>6.8%</td></tr></table>
<table><tr><td>$ in billions</td><td>Total</td><td>Equity</td><td>Fixed Income<sup></sup></td><td>Balanced</td><td>Money Market<sup>-5</sup></td><td>Alternatives<sup>-6</sup></td></tr><tr><td>December 31, 2016</td><td>812.9</td><td>364.1</td><td>201.7</td><td>46.8</td><td>78.3</td><td>122.0</td></tr><tr><td>Long-term inflows<sup>-2</sup></td><td>190.3</td><td>87.9</td><td>47.5</td><td>13.4</td><td>4.1</td><td>37.4</td></tr><tr><td>Long-term outflows</td><td>-178.8</td><td>-99.2</td><td>-38.9</td><td>-9.8</td><td>-3.9</td><td>-27.0</td></tr><tr><td>Long-term net flows</td><td>11.5</td><td>-11.3</td><td>8.6</td><td>3.6</td><td>0.2</td><td>10.4</td></tr><tr><td>Net flows in non-management fee earning AUM</td><td>3.0</td><td>0.5</td><td>2.5</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Net flows in institutional money market funds</td><td>-3.2</td><td>—</td><td>—</td><td>—</td><td>-3.2</td><td>—</td></tr><tr><td>Total net flows</td><td>11.3</td><td>-10.8</td><td>11.1</td><td>3.6</td><td>-3.0</td><td>10.4</td></tr><tr><td>Market gains and losses<sup>-2</sup></td><td>66.0</td><td>56.0</td><td>5.0</td><td>3.7</td><td>0.1</td><td>1.2</td></tr><tr><td>Transfers<sup>-5</sup></td><td>—</td><td>—</td><td>-3.0</td><td>—</td><td>3.0</td><td>—</td></tr><tr><td>Acquisitions/dispositions, net</td><td>26.0</td><td>12.2</td><td>7.8</td><td>—</td><td>—</td><td>6.0</td></tr><tr><td>Foreign currency translation</td><td>21.4</td><td>9.7</td><td>3.2</td><td>3.6</td><td>0.3</td><td>4.6</td></tr><tr><td>December 31, 2017</td><td>937.6</td><td>431.2</td><td>225.8</td><td>57.7</td><td>78.7</td><td>144.2</td></tr><tr><td>Average AUM</td><td>875.0</td><td>398.2</td><td>213.0</td><td>52.3</td><td>78.6</td><td>132.9</td></tr><tr><td>% of total average AUM</td><td>100.0%</td><td>45.5%</td><td>24.3%</td><td>6.0%</td><td>9.0%</td><td>15.2%</td></tr><tr><td>December 31, 2015</td><td>775.6</td><td>370.9</td><td>187.9</td><td>48.1</td><td>64.6</td><td>104.1</td></tr><tr><td>Long-term inflows</td><td>177.8</td><td>74.6</td><td>48.0</td><td>9.8</td><td>4.0</td><td>41.4</td></tr><tr><td>Long-term outflows</td><td>-161.3</td><td>-93.0</td><td>-31.6</td><td>-11.5</td><td>-3.8</td><td>-21.4</td></tr><tr><td>Long-term net flows</td><td>16.5</td><td>-18.4</td><td>16.4</td><td>-1.7</td><td>0.2</td><td>20.0</td></tr><tr><td>Net flows in non-management fee earning AUM</td><td>-6.4</td><td>-5.1</td><td>-1.3</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Net flows in institutional money market funds</td><td>12.8</td><td>—</td><td>—</td><td>—</td><td>12.8</td><td>—</td></tr><tr><td>Total net flows</td><td>22.9</td><td>-23.5</td><td>15.1</td><td>-1.7</td><td>13.0</td><td>20.0</td></tr><tr><td>Market gains and losses<sup>-2</sup></td><td>37.7</td><td>26.6</td><td>4.3</td><td>2.5</td><td>0.5</td><td>3.8</td></tr><tr><td>Acquisitions/dispositions, net</td><td>-1.2</td><td>0.4</td><td>-1.1</td><td>—</td><td>0.4</td><td>-0.9</td></tr><tr><td>Foreign currency translation</td><td>-22.1</td><td>-10.3</td><td>-4.5</td><td>-2.1</td><td>-0.2</td><td>-5.0</td></tr><tr><td>December 31, 2016</td><td>812.9</td><td>364.1</td><td>201.7</td><td>46.8</td><td>78.3</td><td>122.0</td></tr><tr><td>Average AUM</td><td>788.8</td><td>356.3</td><td>196.6</td><td>47.3</td><td>74.3</td><td>114.3</td></tr><tr><td>% of total average AUM</td><td>100.0%</td><td>45.2%</td><td>24.9%</td><td>6.0%</td><td>9.4%</td><td>14.5%</td></tr><tr><td>December 31, 2014</td><td>792.4</td><td>384.4</td><td>181.6</td><td>50.6</td><td>76.5</td><td>99.3</td></tr><tr><td>Long-term inflows</td><td>178.4</td><td>80.7</td><td>43.3</td><td>16.1</td><td>3.7</td><td>34.6</td></tr><tr><td>Long-term outflows</td><td>-161.8</td><td>-86.4</td><td>-32.2</td><td>-14.7</td><td>-3.9</td><td>-24.6</td></tr><tr><td>Long-term net flows</td><td>16.6</td><td>-5.7</td><td>11.1</td><td>1.4</td><td>-0.2</td><td>10.0</td></tr><tr><td>Net flows in non-management fee earning AUM</td><td>-2.2</td><td>-1.4</td><td>-0.8</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Net flows in institutional money market funds</td><td>-11.9</td><td>—</td><td>—</td><td>—</td><td>-11.9</td><td>—</td></tr><tr><td>Total net flows</td><td>2.5</td><td>-7.1</td><td>10.3</td><td>1.4</td><td>-12.1</td><td>10.0</td></tr><tr><td>Market gains and losses<sup>-2</sup></td><td>-2.6</td><td>2.1</td><td>-1.4</td><td>-0.4</td><td>0.2</td><td>-3.1</td></tr><tr><td>Acquisitions/dispositions, net</td><td>-0.7</td><td>—</td><td>—</td><td>—</td><td>—</td><td>-0.7</td></tr><tr><td>Foreign currency translation</td><td>-16.0</td><td>-8.5</td><td>-2.6</td><td>-3.5</td><td>—</td><td>-1.4</td></tr><tr><td>December 31, 2015</td><td>775.6</td><td>370.9</td><td>187.9</td><td>48.1</td><td>64.6</td><td>104.1</td></tr><tr><td>Average AUM</td><td>794.7</td><td>386.6</td><td>185.6</td><td>51.2</td><td>70.7</td><td>100.6</td></tr><tr><td>% of total average AUM</td><td>100.0%</td><td>48.6%</td><td>23.4%</td><td>6.4%</td><td>8.9%</td><td>12.7%</td></tr></table>

Question: Which year is Total net flows the most in terms of Total between 2016,2015 and 2014?