Need the full correct html code for this Table

Image table

Please write full html codes for this table. You may see the Table image from above via the link.

<table border="1" width="800">
<tr>
    <th>Level1</th>
    <th>Level2</th>
    <th>Level2</th>
    <th>Info</th>
    <th>Name</th>
</tr>
<tr>
    <td rowspan="6">System</td>
</tr>
<tr>
    <td rowspan="4">System Apps</td>
    <td rowspan="2">System Memory</td>
</tr>
<tr>
    <td rowspan="3">SystemEnv</td>
    <td rowspan="1">SystemEnv2</td>
    <td rowspan="2">Memeory Test</td>
</tr>