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Output for 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.20, 8.4.1 - 8.4.6
array ( 0 => array ( 'Date' => '2014-04-01', 'Units' => 4, ), 1 => array ( 'Date' => '2014-04-02', 'Units' => 14, ), )

preferences:
52.44 ms | 411 KiB | 5 Q