Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Suvarnabhumi Airport
Table title:
Traffic by calendar year
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 >  </th><th colspan=1 rowspan=1 > Passengers </th><th colspan=1 rowspan=1 > Change from previous year </th><th colspan=1 rowspan=1 > Movements </th><th colspan=1 rowspan=1 > Cargo (tons) </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <th colspan=1 rowspan=1 > 2008 </th><td colspan=1 rowspan=1 > 38,603,490 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 1,173,084 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2009 </th><td colspan=1 rowspan=1 > 40,500,224 </td><td colspan=1 rowspan=1 > 4.9% </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 1,045,194 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2010 </th><td colspan=1 rowspan=1 > 42,784,967 </td><td colspan=1 rowspan=1 > 5.6% </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 1,310,146 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2011 </th><td colspan=1 rowspan=1 > 47,910,744 </td><td colspan=1 rowspan=1 > 12.0% </td><td colspan=1 rowspan=1 > 299,566 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2012 </th><td colspan=1 rowspan=1 > 53,002,328 </td><td colspan=1 rowspan=1 > 10.6% </td><td colspan=1 rowspan=1 > 312,493 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > Source: Airports Council International In 2012, the government enjoined all low-cost airlines to move their hubs to DMK in October. </td></tr>
<tr> <th colspan=1 rowspan=1 > 2013 </th><td colspan=1 rowspan=1 > 51,363,451 </td><td colspan=1 rowspan=1 > 11.9% </td><td colspan=1 rowspan=1 > 288,004 </td><td colspan=1 rowspan=1 > 1,236,223 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2014 </th><td colspan=1 rowspan=1 > 46,423,352 </td><td colspan=1 rowspan=1 > 9.6% </td><td class="highlighted"  colspan=1 rowspan=1 > 289,568 </td><td colspan=1 rowspan=1 > 1,234,176 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2015 </th><td colspan=1 rowspan=1 > 52,902,110 </td><td colspan=1 rowspan=1 > 14.0% </td><td class="highlighted"  colspan=1 rowspan=1 > 317,066 </td><td colspan=1 rowspan=1 > 1,230,563 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2016 </th><td colspan=1 rowspan=1 > 55,892,428 </td><td colspan=1 rowspan=1 > 5.7% </td><td colspan=1 rowspan=1 > 336,345 </td><td colspan=1 rowspan=1 > 1,351,878 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2017 </th><td colspan=1 rowspan=1 > 60,860,704 </td><td colspan=1 rowspan=1 > 8.9% </td><td colspan=1 rowspan=1 > 350,508 </td><td colspan=1 rowspan=1 > 1,439,913 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2018 </th><td colspan=1 rowspan=1 > 63,378,923 </td><td colspan=1 rowspan=1 > 4.1% </td><td colspan=1 rowspan=1 > 369,474 </td><td colspan=1 rowspan=1 > 1,494,599 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
How aircraft movements of the airport have changed from 2014 to 2015?
Answer:
Suvarnabhumi Airport's aircraft movements increased from 289,568 in 2014 to 317,066 in 2015.