“…These tools included the mean, Coefficient of variance (CV), Standard Deviation (SD), Gini coefficient, diffusion model, regression model, and Kolmogorov Smirnov (K-S) statistical test. These papers were studied by Abouchedid and Abdelnour (2015), Bai and Hudson (2010), Bezzaoucha et al (2014), Drivas et al (2015), Duque et al (2005), Fox (1983), Gayan and Singh (2019), Gupta et al (1998), He et al (2009), Hollis (2001), Hong et al (2007), Hughes (1999), Lafuente and Berbegal-Mirabent (2019), Marisha et al (2017), Muthukrishnan and Senthilkumar (2017), Neri and Rodgers (2006), Samadikuchaksaraei et al (2018), Sevukan et al (2007), Valadkhani and Ville (2009), and Wanner et al (1981).…”