Table 2. R₀ estimates from method 5, with three sexual activity classes.

	R0_5: same β by gender				R0_5: different β by gender
		Assortative mixing				Assortative mixing
Year	Proportionate mixing	Low	Medium	High	Proportionate mixing	Low	Medium	High
1991	4.67	-*	3.15	7.04	4.41	-	2.97	6.63
1992	3.06	0.14	-	7.04	2.88	0.14	-	6.63
1993	3.75	0.29	2.73	9.05	3.53	0.28	2.58	8.53
1994	6.59	-	-	8.29	6.22	-	-	7.81
1995	4.59	0.1	2.77	6.64	4.33	0.1	2.61	6.26
1996	4.23	0.26	3.19	6.96	3.99	0.25	3.01	6.56
1997	11.32	0.12	3.18	13.18	10.67	0.12	3	12.42
1998	4.78	0.21	3.22	6.89	4.5	0.2	3.03	6.49
1999	6.84	0.15	3.12	9.86	6.45	0.14	2.94	9.3
2000	9.2	0.27	3.5	11.71	8.67	0.25	3.3	11.04
2001	8.94	-	3.44	10.29	8.43	-	3.24	9.7
2002	8.1	0.09	-	9.04	7.64	0.09	-	8.52
2003	11.2	0.19	-	15.02	10.56	0.18	-	14.16
2004	13.05	-	3.52	13.85	12.3	-	3.32	13.06
2005	9.47	-	3.14	10.8	8.93	-	2.96	10.18
2006	10.04	-	3.5	11.52	9.47	-	3.3	10.87
2007	15.93	0.12	2.83	18.91	15.02	0.12	2.67	17.83
2008	9.97	0.09	3.44	12.38	9.4	0.09	3.24	11.68

“-” implies R₀ could not be estimated because, for one or both genders, there were no individuals falling in the sexual activity class.