Table 11.

Number of internationally collaborated papers for each two consecutive years in 2016–2020

Years	First year		Second year		t-test statistic	p-value
	Mean	SD	Mean	SD
2016–2017	7.77	15.06	7.88	17.55	0.05	0.48
2017–2018	7.88	17.55	9.41	20.16	0.63	0.26
2018–2019	9.41	20.16	11.87	24.57	0.89	0.19
2019–2020	11.87	24.57	20.5	45.13	2.07	0.019
2019–2020 COVID-19	11.87	24.57	8.45	15.64	-1.3	0.09
2019–2020 non-COVID-19	11.87	24.57	15.55	32.93	1.08	0.14

Mean, SD, T-Test statistic and p-value. Results in bold are statistically significant