Table 2.

Basic statistical parameters of studied variables from 2017 for all the EU countries.

Variable	Mean	Median	Minimum	Maximum	Standard deviation	Coefficient of variation, %	Skewness	Kurtosis
	thousand tonnes
CO2	131155.5	62138.69	2036.24	827082.49	185462.07	138.86	2.37	6.48
CH4	647.7	326.07	7.5	2250.22	752.81	114.12	1.24	−0.03
N2O	28.5	18.59	0.15	140.91	35.69	123.02	2.09	4.11
NH3	141.2	64.728	1.11	673.25	188.14	130.84	1.82	2.34
NMVOC	248.7	154.79	2.82	1068.76	304.87	120.38	1.58	1.30
PM2.5	46.6	30.12	0.24	164.68	51.49	108.54	1.30	0.37
PM10	72.1	45.31	0.38	254.23	78.63	107.05	1.26	0.20
SOx	83.0	75.07	0.15	582.66	123.85	146.61	2.85	9.63
NOx	269.0	200.51	5.34	1187.50	328.17	119.80	1.55	1.21