+-------------------+--------------------------------------+
| :title            | :series                              |
+-------------------+--------------------------------------+
| jruby 1.6.3       | +---------------+------------------+ |
|                   | | :title        | :data            | |
|                   | +---------------+------------------+ |
|                   | | :"Array#sort" | +------+-------+ | |
|                   | |               | | :x   | :y    | | |
|                   | |               | +------+-------+ | |
|                   | |               | |  100 | 0.002 | | |
|                   | |               | | 1000 | 0.019 | | |
|                   | |               | +------+-------+ | |
|                   | +---------------+------------------+ |
| rubinius 1.2.5dev | +---------------+------------------+ |
|                   | | :title        | :data            | |
|                   | +---------------+------------------+ |
|                   | | :"Array#sort" | +------+-------+ | |
|                   | |               | | :x   | :y    | | |
|                   | |               | +------+-------+ | |
|                   | |               | |  100 | 0.000 | | |
|                   | |               | | 1000 | 0.028 | | |
|                   | |               | +------+-------+ | |
|                   | +---------------+------------------+ |
| rubinius 2.0.0dev | +---------------+------------------+ |
|                   | | :title        | :data            | |
|                   | +---------------+------------------+ |
|                   | | :"Array#sort" | +------+-------+ | |
|                   | |               | | :x   | :y    | | |
|                   | |               | +------+-------+ | |
|                   | |               | |  100 | 0.000 | | |
|                   | |               | | 1000 | 0.004 | | |
|                   | |               | +------+-------+ | |
|                   | +---------------+------------------+ |
| ruby 1.8.7        | +---------------+------------------+ |
|                   | | :title        | :data            | |
|                   | +---------------+------------------+ |
|                   | | :"Array#sort" | +------+-------+ | |
|                   | |               | | :x   | :y    | | |
|                   | |               | +------+-------+ | |
|                   | |               | |  100 | 0.000 | | |
|                   | |               | | 1000 | 0.000 | | |
|                   | |               | +------+-------+ | |
|                   | +---------------+------------------+ |
| ruby 1.9.2p290    | +---------------+------------------+ |
|                   | | :title        | :data            | |
|                   | +---------------+------------------+ |
|                   | | :"Array#sort" | +------+-------+ | |
|                   | |               | | :x   | :y    | | |
|                   | |               | +------+-------+ | |
|                   | |               | |  100 | 0.000 | | |
|                   | |               | | 1000 | 0.000 | | |
|                   | |               | +------+-------+ | |
|                   | +---------------+------------------+ |
| ruby 1.9.3dev     | +---------------+------------------+ |
|                   | | :title        | :data            | |
|                   | +---------------+------------------+ |
|                   | | :"Array#sort" | +------+-------+ | |
|                   | |               | | :x   | :y    | | |
|                   | |               | +------+-------+ | |
|                   | |               | |  100 | 0.000 | | |
|                   | |               | | 1000 | 0.000 | | |
|                   | |               | +------+-------+ | |
|                   | +---------------+------------------+ |
+-------------------+--------------------------------------+