In this paper, we present the findings of a systematic review of the SRE literature, covering 300 papers in 95 publication venues (conferences and journals) in the last twelve years. We employ statistic techniques to help mining patterns and trends from the analyzed data set. We identified a prevalence of purely theoretical studies in the surveyed period, where no more than 31% are experimental research. Also, the number of research works in “Reliability Assessment” has clearly increased since 2002, and especially during the last three years. On the other hand, works in “Reliability Modeling” and “Fault Analysis” have been gradually reduced during the last decade.