Figure 2
The bar graph compares the number of articles published per year from 1997 to 2025. The x-axis represents the years, ranging from 1997 to 2025, and the y-axis represents the number of articles published, ranging from 0 to 8. The bars are vertical. Key data points include: 1 article published in 1997, 2005, 2013, 2015, 2016, 2017, and 2018; 2 articles published in 2008 and 2012; 4 articles published in 2019 and 2020; 5 articles published in 2022 and 2025; 6 articles published in 2021; and 7 articles published in 2024. The graph shows an increasing trend in the number of articles published over the years, with notable increases starting from 2019. All values are approximated.Number of articles published per year. Source: Authors' own work