On 19 February, Human Rights Watch released the report, "Syria: New Deadly Cluster Munition Attacks" detailing the use of powerful rockets by Syrian forces not seen before in past cluster munition use against civilians. See also the Cluster Munition Coalition's Syria page.
The 2013 Monitor country profile highlights use from July 2012 to June 2012. In 2012, Syrian casualties accounted for 165 of 190 total global cluster munitions. Figures for 2013 will be available later this year.