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:
Chennai Port
Table title:
Traffic growth
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Cargo (million tonnes) </th><th colspan=1 rowspan=1 > Cars exported </th></tr>
<tr> <td colspan=1 rowspan=1 > 2000–01 </td><td colspan=1 rowspan=1 > 41.22 </td><td colspan=1 rowspan=1 > 5,260 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2001–02 </td><td colspan=1 rowspan=1 > 36.12 </td><td colspan=1 rowspan=1 > 4,635 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2002–03 </td><td colspan=1 rowspan=1 > 33.69 </td><td colspan=1 rowspan=1 > 8,482 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2003–04 </td><td colspan=1 rowspan=1 > 36.71 </td><td colspan=1 rowspan=1 > 39,874 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2004–05 </td><td colspan=1 rowspan=1 > 43.80 </td><td colspan=1 rowspan=1 > 83,121 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2005–06 </td><td colspan=1 rowspan=1 > 47.25 </td><td colspan=1 rowspan=1 > 102,692 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2006–07 </td><td colspan=1 rowspan=1 > 53.41 </td><td colspan=1 rowspan=1 > 114,756 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2007–08 </td><td colspan=1 rowspan=1 > 57.15 </td><td class="highlighted"  colspan=1 rowspan=1 > 137,971 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2008–09 </td><td colspan=1 rowspan=1 > 57.49 </td><td class="highlighted"  colspan=1 rowspan=1 > 248,697 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2009–10 </td><td colspan=1 rowspan=1 > 61.06 </td><td colspan=1 rowspan=1 > 273,917 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2010–11 </td><td colspan=1 rowspan=1 > 61.46 </td><td colspan=1 rowspan=1 > 234,762 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011–12 </td><td colspan=1 rowspan=1 > 55.71 </td><td colspan=1 rowspan=1 > 252,640 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2012–13 </td><td colspan=1 rowspan=1 > 53.40 </td><td colspan=1 rowspan=1 > 272,345 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015–16 </td><td colspan=1 rowspan=1 > 50.06 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2017–18 </td><td colspan=1 rowspan=1 > 51.88 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
How did car exports through the Chennai Port
Answer:
Car export increased by 248,697 during 2008–09 as against 137,971 in the previous year.