This book covers descriptive statistical analysis and interpretation of key microeconomics variables in Sierra Leone from 1980 to 2015. Like Sierra Leone and Ghana, many nations depend primarily on taxation as a means of galvanizing the required resources needed to meet public expenditure requirements. It is therefore very important to study how fiscal variables change and how private investment and financial sector, which are the primary subjects of this book, change in the same period. This book has drawn direct relationships between variables, and also analyses some of the changes in the fiscal policy variables with existing literatures and economic theories using descriptive statistics.