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All Journal ECOPLAN : JOURNAL OF ECONOMICS AND DEVELOPMENT STUDIES
Loria Amisah Lubis
Department of Mathematics and Statistics, Faculty of Mathematics and Natural Sciences, Universitas Papua, Indonesia
Economics, Econometrics & Finance

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Analysis of Frequency Distribution and Histogram of Inflation Rates in Indonesia for the Period 2020–2024 Trigarcia Maleachi Randa; Loria Amisah Lubis
Ecoplan Vol 9 No 1 (2026)
Publisher : Jurusan Ilmu Ekonomi dan Studi Pembangunan Fakultas Ekonomi dan Bisnis Universitas Lambung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ecoplan.v9i1.1452

Abstract

This study analyzes Indonesia’s monthly inflation rates from January 2020 to December 2024 using descriptive statistical methods, namely frequency distribution tables and histograms with trend lines. The results show that inflation during this five-year period predominantly remained within the low to moderate range of 1.00%–3.00%. The distribution is positively skewed, indicating that lower inflation values occurred more frequently, while higher inflation rates were relatively rare. The most frequent class interval was 1.00%–1.67%, accounting for 26.67% of the total observations, and nearly 70% of the data fell below 3.01%, reflecting relative price stability. However, temporary inflation spikes were observed between 2022 and early 2023, likely influenced by global supply chain disruptions and commodity price volatility. Overall, the findings suggest that Indonesia’s inflation remained largely controlled throughout the study period, highlighting the role of policy measures during and after the COVID-19 pandemic. This study demonstrates the effectiveness of simple descriptive statistical tools in identifying key characteristics and trends in macroeconomic data.
Co-Authors Trigarcia Maleachi Randa