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:
Identification studies of UFOs
Table title:
Breakdown of cases
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Category </th><th colspan=1 rowspan=1 > NL </th><th colspan=1 rowspan=1 > DD </th><th colspan=1 rowspan=1 > CE </th><th colspan=1 rowspan=1 > RV </th><th colspan=1 rowspan=1 > Total Cases </th><th colspan=1 rowspan=1 > Percent </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Astronomical </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > bright stars or planets </td><td colspan=1 rowspan=1 > 360 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 16 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 380 </td><td colspan=1 rowspan=1 > 29% </td></tr>
<tr> <td colspan=1 rowspan=1 > meteors, re-entering man-made spacecraft </td><td colspan=1 rowspan=1 > 113 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 122 </td><td colspan=1 rowspan=1 > 9% </td></tr>
<tr> <td colspan=1 rowspan=1 > artificial satellites </td><td colspan=1 rowspan=1 > 24 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 24 </td><td colspan=1 rowspan=1 > 2% </td></tr>
<tr> <td colspan=1 rowspan=1 > moon </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 2% </td></tr>
<tr> <td colspan=1 rowspan=1 > TOTAL (all cases) </td><td colspan=1 rowspan=1 > 519 </td><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 550 </td><td colspan=1 rowspan=1 > 42% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Aircraft </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > advertising planes </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 252 </td><td colspan=1 rowspan=1 > 19% </td></tr>
<tr> <td colspan=1 rowspan=1 > other aircraft </td><td colspan=1 rowspan=1 > 196 </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 224 </td><td colspan=1 rowspan=1 > 17% </td></tr>
<tr> <td colspan=1 rowspan=1 > missile launches </td><td colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > 0.7% </td></tr>
<tr> <td colspan=1 rowspan=1 > TOTAL </td><td colspan=1 rowspan=1 > 435 </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 29 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 486 </td><td colspan=1 rowspan=1 > 37% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > balloons </td><td colspan=1 rowspan=1 > 23 </td><td colspan=1 rowspan=1 > 35 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > 63 </td><td colspan=1 rowspan=1 > 5% </td></tr>
<tr> <td colspan=1 rowspan=1 > birds </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > 0.5% </td></tr>
<tr> <td colspan=1 rowspan=1 > clouds, dust </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 0.9% </td></tr>
<tr> <td colspan=1 rowspan=1 > light phenomena (mirage, moon dog, ground lights, searchlights, etc.) </td><td colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 14 </td><td colspan=1 rowspan=1 > 1.1% </td></tr>
<tr> <td colspan=1 rowspan=1 > other (kites, flares, reflections, windblown debris, etc.) </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 16 </td><td colspan=1 rowspan=1 > 1.2% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Total Identified </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Cases </td><td colspan=1 rowspan=1 > 1024 </td><td colspan=1 rowspan=1 > 71 </td><td colspan=1 rowspan=1 > 58 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > 1158 </td><td colspan=1 rowspan=1 > 88.6% </td></tr>
<tr> <td colspan=1 rowspan=1 > Percent </td><td colspan=1 rowspan=1 > 78.3% </td><td colspan=1 rowspan=1 > 5.4% </td><td colspan=1 rowspan=1 > 4.4% </td><td colspan=1 rowspan=1 > .4% </td><td class="highlighted"  colspan=1 rowspan=1 > 88.6% </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Total Unidentified </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Cases </td><td colspan=1 rowspan=1 > 79 </td><td colspan=1 rowspan=1 > 18 </td><td colspan=1 rowspan=1 > 16 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 113 </td><td colspan=1 rowspan=1 > 8.6% </td></tr>
<tr> <td colspan=1 rowspan=1 > Percent </td><td colspan=1 rowspan=1 > 6% </td><td colspan=1 rowspan=1 > 1.4% </td><td colspan=1 rowspan=1 > 1.2% </td><td colspan=1 rowspan=1 > 0% </td><td class="highlighted"  colspan=1 rowspan=1 > 8.6% </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > MISC (insufficient information, inconsistent accounts, unreliable witnesses) </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 36 </td><td colspan=1 rowspan=1 > 2.8% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Total all cases </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Cases </td><td colspan=1 rowspan=1 > 1103 </td><td colspan=1 rowspan=1 > 89 </td><td colspan=1 rowspan=1 > 74 </td><td colspan=1 rowspan=1 > 5 </td><td class="highlighted"  colspan=1 rowspan=1 > 1307 </td><td colspan=1 rowspan=1 > 100% </td></tr>
<tr> <td colspan=1 rowspan=1 > Percent </td><td colspan=1 rowspan=1 > 84.4% </td><td colspan=1 rowspan=1 > 6.8% </td><td colspan=1 rowspan=1 > 5.7% </td><td colspan=1 rowspan=1 > 0.4% </td><td colspan=1 rowspan=1 > 100% </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What conclusions did Hendry make about whether the identified and unidentified cases were unknowns (UFOs)?
Answer:
Out of 1,307 cases Hendry deemed 88.6% and 8.6% were unknowns (UFOs).