Table 4.

Age and gender distribution by wave and country.

	Wave 1					Wave 2					Wave 3
	Age		Gender			Age		Gender			Age		Gender
	M	SD	% girls	% boys	% other	M	SD	% girls	% boys	% other	M	SD	% girls	% boys	% other
Estonia	14.65	1.24	48.72	49.52	1.76	15.52	1.20	49.19	47.57	3.24	16.45	1.17	46.37	50.35	3.28
Finland	14.44	0.97	46.16	51.28	2.56	15.41	1.14	46.15	50.34	3.51	16.07	1.01	45.79	50.34	3.88
Germany	14.08	1.33	52.63	46.35	1.02	14.97	1.21	51.91	46.14	1.96	15.85	1.14	51.88	45.57	2.54
Italy	14.39	1.18	57.50	41.16	1.34	15.67	1.07	50.25	47.39	2.36	16.82	0.94	45.86	51.40	2.73
Poland	14.08	1.44	46.71	49.65	3.63	14.96	1.50	49.26	45.39	5.35	15.88	1.78	43.67	48.76	7.57
Portugal	14.65	1.29	49.71	50.29	0.00	15.59	1.24	49.42	50.16	0.42	16.55	1.22	49.03	50.32	0.65
Total	14.38	1.29	50.22	48.06	1.72	15.38	1.26	49.51	47.64	2.85	16.30	1.23	47.04	49.64	3.32