Figure 10
The horizontal axis is labeled “Year” and ranges from 2000 to 2026 in increments of two years. The vertical axis is labeled “The number of literatures” and ranges from 0 to 60 in increments of 10 units. A single line with circular markers represents the yearly number of publications. The values start near (2000, 1) and remain low and fluctuate between approximately 1 and 5 from 2000 to 2009. The count increases to around (2010, 7.32) and (2011, 9.90), followed by a sharp rise to about (2013, 23). It then declines to roughly (2014, 18.89) and (2015, 13), before increasing again to around (2016, 19.82) and (2017, 20). From 2017 onward, the trend shows steady growth: approximately (2018, 28.92), (2019, 29.23), (2020, 35.42), and (2020, 33). A significant jump occurs at about (2022, 49.32), followed by values near (2023, 50), (2024, 49.56), (2024, 49.98), and a peak, and terminates at (2025, 55.56). Note: All numerical data values are approximated.Number of publications in container ports with metaheuristics