Table 2

Results of the PCA

Pre-COVID-19Post-COVID-19
NoCumulative variance contributionGrowth rateNo.Cumulative variance contributionGrowth rateNo.Cumulative variance contributionGrowth rateNo.Cumulative variance contributionGrowth rate
141.112 1695.1611.157133.398 161.49491.821
251.60510.4921796.0840.923210.10343.501171.40393.225
359.557.9451896.850.76637.62851.129181.22194.446
465.656.11997.4890.63946.19457.323190.99295.438
570.7645.1142098.0430.55455.38462.707200.86596.303
674.8184.0542198.5230.48164.06966.776210.79297.095
778.4383.622298.9530.4373.59270.368220.69197.786
881.5593.1212399.270.31783.39173.76230.64998.435
983.792.2312499.5060.23693.1976.95240.59899.034
1085.9962.2062599.7060.2103.0279.97250.41399.446
1187.9311.9352699.8730.167112.47882.448260.30199.747
1289.7051.7742799.9850.111122.31584.763270.22499.971
1391.2511.5462899.9940.009132.12286.885280.029100
1492.6351.384291000.006141.78888.673290100
1594.0031.368   151.65490.327   

Note(s): The italic data is the number of selected principal components and corresponding variance contribution ratios and growth rate

Source(s): Authors’ own work

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