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Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.18, 8.4.1 - 8.4.5
array ( 0 => array ( 'yearmonth' => '2019-6', 'count' => 0, ), 1 => array ( 'yearmonth' => '2019-7', 'count' => 3, ), 2 => array ( 'yearmonth' => '2019-8', 'count' => 0, ), 3 => array ( 'yearmonth' => '2019-9', 'count' => 3, ), 4 => array ( 'yearmonth' => '2019-10', 'count' => 5, ), )

preferences:
103.62 ms | 413 KiB | 5 Q