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:
The System discography
Table title:
Singles
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Year </th><th colspan=1 rowspan=2 > Title </th><th colspan=4 rowspan=1 > Peak chart positions </th><th colspan=1 rowspan=2 > Album </th></tr>
<tr> <th colspan=1 rowspan=1 > US </th><th colspan=1 rowspan=1 > US Club </th><th colspan=1 rowspan=1 > US R&B </th><th colspan=1 rowspan=1 > UK </th></tr>
<tr> <th colspan=1 rowspan=1 > 1982 </th><td colspan=1 rowspan=1 > "It's Passion" </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 23 </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=3 > Sweat </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=2 > 1983 </th><td class="highlighted"  colspan=1 rowspan=1 > "You Are in My System" </td><td colspan=1 rowspan=1 > 64 </td><td colspan=1 rowspan=1 > 14 </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > 89 </td></tr>
<tr> <td colspan=1 rowspan=1 > "I Won't Let Go" </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> <th colspan=1 rowspan=2 > 1984 </th><td colspan=1 rowspan=1 > "Promises Can Break" </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=2 > X-Periment </td></tr>
<tr> <td colspan=1 rowspan=1 > "I Wanna Make You Feel Good" </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 73 </td></tr>
<tr> <th colspan=1 rowspan=3 > 1985 </th><td colspan=1 rowspan=1 > "This Is for You" </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 43 </td><td colspan=1 rowspan=1 > 8 </td><td colspan=1 rowspan=1 > 78 </td><td colspan=1 rowspan=3 > The Pleasure Seekers </td></tr>
<tr> <td colspan=1 rowspan=1 > "The Pleasure Seekers" </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 21 </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 > "I Don't Run From Danger" </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> <th class="highlighted"  colspan=1 rowspan=4 > 1987 </th><td class="highlighted"  colspan=1 rowspan=1 > "Don't Disturb This Groove" </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=4 > Don't Disturb This Groove </td></tr>
<tr> <td colspan=1 rowspan=1 > "House of Rhythm / Groove" </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 > "Nighttime Lover" </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 > "Come As You Are (Superstar)" </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> <th colspan=1 rowspan=3 > 1989 </th><td colspan=1 rowspan=1 > "Midnight Special" </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=3 > Rhythm & Romance </td></tr>
<tr> <td colspan=1 rowspan=1 > "I Wanna Be Your Lover" </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 > "Have Mercy" </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=7 rowspan=1 > "—" denotes a recording that did not chart or was not released in that territory. </td></tr>
</table>
Question:
Which discography singles did The System release in 1987 and 1983?
Answer:
The System discography's singles were "Don't Disturb This Groove" in 1987 and "You Are in My System" in 1983.