年份	發行種類	發行冊數
2003	26,290	78,090,894
2002	27,126	81,555,027
2001	25,162	75,020,756
2000	25,632	68,407,991
1999	25,910	75,840,951
1998	28,838	157,510,364
1997	27,313	188,707,879
1996	26,664	158,136,723
1995	27,407	144,183,607
1994	29,564	152,326,103
1993	26,304	139,221,724
1992	24,783	136,752,198
1991	22,769	134,616,495
1990	41,712	241,839,337
1989	38,837	197,224,979
1988	39,454	167,258,201
1987	38,301	155,801,083
1986	37,411	145,100,138
1985	33,743	114,970,687
1984	33,156	110,498,770
1983	33,321	104,411,111
1982	29,190	88,326,989
1981	23,983	73,127,664
1980	20,985	64,609,972