When querying for Semester's data in DE, The total number of period items displays a wrong numbering.
https://de-qa.siscc.org/vis?lc=en&df[ds]=qa%3Astable&df[id]=DF_D4403&df[ag]=LU1&df[vs]=1.0&av=true&pd=2015-S1%2C2020-S2&dq=..S&ly[rw]=SPECIFICATION