Data Insights exhibit: Title: Public Library Computer Upgrades Installation Table. Columns: Month, Installations during month, Cumulative installations, Service calls. Rows shown: Oct = Installations during month: 535, Cumulative installations: 1035, Service calls: 510; Nov = Installations during month: 548, Cumulative installations: 1583, Service calls: 523; Dec = Installations during month: 561, Cumulative installations: 2144, Service calls: 536. Note: Cumulative installations are total installations completed through month-end. Which interpretation follows directly from the exhibit title, headers, labels, and note?