Xu hướng phổ biến

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Năm	Thứ hạng	Số lượng
1945	#34	409
1946	#36	409
1947	#38	390
1948	#41	349
1949	#42	335
1950	#52	291
1951	#45	301
1952	#42	332
1953	#59	275
1954	#58	277
1955	#63	269
1956	#74	249
1957	#62	278
1958	#64	268
1959	#73	239
1960	#81	224
1961	#69	242
1962	#88	198
1963	#88	202
1964	#77	232
1965	#88	210
1966	#99	182
1967	#89	199
1968	#99	182
1969	#105	178
1970	#110	154
1971	#125	131
1972	#137	126
1973	#151	106
1974	#138	117
1975	#145	112
1976	#184	82
1977	#185	78
1978	#159	98
1979	#192	80
1980	#171	88
1981	#153	96
1982	#155	98
1983	#165	93
1984	#195	78
1985	#188	82
1986	#168	89
1987	#212	71
1988	#194	81
1989	#189	82
1990	#149	111
1991	#153	102
1992	#152	108
1993	#153	106
1994	#141	116
1995	#177	93
1996	#127	125
1997	#168	96
1998	#110	132
1999	#137	110
2000	#147	101
2001	#187	75
2002	#141	96
2003	#132	109
2004	#142	106
2005	#134	110
2006	#119	129
2007	#122	126
2008	#99	150
2009	#137	116
2010	#87	164
2011	#83	170
2012	#91	158
2013	#58	199
2014	#56	192
2015	#45	229
2016	#31	248
2017	#25	249
2018	#27	243
2019	#25	250
2020	#30	217
2021	#26	232
2022	#25	247
2023	#19	270
2024	#13	298
2025	#21	285