Complex sentence: The Central Statistical Office also states that prior to 1999 police did not report about a third of all rape cases to the prosecutor, whereas after the reform this number has decreased to one tenth of all cases that come to the attention of the police.
Split into simpler sentences: The Central Statistical Office also states that prior to 1999, police did not report about a third of all rape cases to the prosecutor. After the reform, this number has decreased to one tenth of all cases that come to the attention of the police.