Book distribution trends by year.
| 3 | 1981 | 0 | 1,003,543 | 1,277,703 | 2,503,027 | 1,552,122 | 437 | 0 | 6,336,832 |
| 4 | 1982 | 625,703 | 1,394,657 | 1,231,729 | 2,494,293 | 2,545,276 | 0 | 0 | 8,291,658 |
| 5 | 1983 | 1,295,769 | 1,291,156 | 2,071,167 | 2,820,980 | 5,630,291 | 0 | 0 | 13,109,363 |
| 6 | 1984 | 1,274,011 | 1,246,074 | 1,647,507 | 2,157,540 | 3,571,696 | 0 | 0 | 9,896,828 |
| 7 | 1985 | 1,110,524 | 1,101,070 | 1,723,297 | 2,769,947 | 3,599,820 | 0 | 0 | 10,304,658 |
| 8 | 1986 | 313,315 | 370,756 | 683,850 | 1,275,385 | 1,151,126 | 0 | 0 | 3,794,432 |
| 9 | 1987 | 156,950 | 324,993 | 398,000 | 197,015 | 262,283 | 0 | 635 | 1,339,241 |
| 10 | 1988 | 112,671 | 102,488 | 382,123 | 194,926 | 310,145 | 0 | 0 | 1,102,353 |
| 11 | 1989 | 635,507 | 883,493 | 792,809 | 2,367,604 | 919,100 | 0 | 0 | 5,598,513 |
| 12 | 1990 | 861,842 | 1,649,919 | 863,275 | 2,439,717 | 1,240,142 | 0 | 0 | 7,054,895 |
| 13 | 1991 | 1,734,345 | 1,793,137 | 1,121,094 | 2,629,419 | 1,191,486 | 0 | 0 | 8,469,481 |
| 14 | 1992 | 1,948,956 | 1,778,207 | 1,307,203 | 2,804,946 | 1,236,394 | 61,800 | 0 | 9,137,506 |
| 15 | 1993 | 1,919,252 | 1,795,262 | 1,672,280 | 2,513,171 | 1,594,039 | 51,516 | 0 | 9,545,520 |
| 16 | 1994 | 1,480,498 | 1,911,606 | 2,109,224 | 2,670,245 | 1,749,193 | 60,111 | 0 | 9,980,877 |
| 17 | 1995 | 1,420,595 | 1,750,271 | 1,898,255 | 2,590,005 | 1,295,415 | 21,773 | 1,882 | 8,976,314 |
| 18 | 1996 | 1,636,336 | 1,628,228 | 1,769,731 | 2,070,751 | 2,072,118 | 30,268 | 11,594 | 9,207,432 |
| 19 | 1997 | 1,203,733 | 1,096,793 | 1,355,271 | 1,679,149 | 1,212,217 | 30,402 | 5,560 | 6,577,565 |
| 20 | 1998 | 1,184,943 | 790,348 | 896,434 | 1,222,575 | 727,475 | 13,085 | 4,018 | 4,834,860 |
| 21 | 1999 | 767,018 | 466,738 | 471,289 | 831,038 | 663,176 | 7,379 | 6,498 | 3,206,638 |
| 22 | 2000 | 653,816 | 473,697 | 444,785 | 896,307 | 376,538 | 9,661 | 5,851 | 2,854,804 |
| 23 | 2001 | 665,524 | 493,452 | 517,867 | 1,027,312 | 213,261 | 5,089 | 6,343 | 2,922,505 |
| 24 | 2002 | 723,801 | 504,222 | 609,893 | 730,043 | 267,192 | 2,712 | 2,177 | 2,837,863 |
| 25 | 2003 | 917,859 | 524,723 | 738,218 | 935,657 | 500,492 | 15,236 | 3,179 | 3,632,185 |
| 26 | 2004 | 1,089,333 | 630,349 | 722,094 | 1,256,876 | 624,073 | 4,140 | 4,139 | 4,326,865 |
| 27 | 2005 | 1,262,471 | 632,693 | 681,062 | 1,334,272 | 483,526 | 21,064 | 6,122 | 4,415,088 |
| 28 | 2006 | 1,426,394 | 577,939 | 556,797 | 1,420,886 | 501,738 | 23,322 | 4,464 | 4,507,076 |
| 29 | 2007 | 1,669,317 | 588,993 | 660,209 | 1,573,396 | 842,686 | 30,405 | 4,761 | 5,365,006 |
| 30 | 2008 | 1,691,843 | 472,804 | 685,855 | 1,726,243 | 826,991 | 33,549 | 4,194 | 5,437,285 |
| 31 | 2009 | 2,037,309 | 464,624 | 654,889 | 1,646,039 | 1,225,205 | 19,949 | 6,214 | 6,048,015 |
| 32 | 2010 | 2,262,023 | 433,839 | 615,792 | 1,809,889 | 1,261,076 | 37,285 | 7,306 | 6,419,904 |
| 33 | 2011 | 3,490,274 | 831,385 | 1,178,679 | 4,173,971 | 1,854,043 | 70,379 | 14,670 | 7,112,223 |
| 34 | 2012 | 3,957,266 | 849,796 | 1,257,988 | 4,619,752 | 1,813,134 | 85,738 | 14,917 | 7,742,496 |
| 35 | 2013 | 3,870,512 | 1,082,571 | 1,467,961 | 5,361,429 | 1,491,428 | 82,374 | 16,486 | 7,901,167 |
| 36 | 2014 | 6,539,739 | 1,351,015 | 1,704,177 | 5,801,770 | 1,377,075 | 89,275 | 41,695 | 8,943,906 |
| 37 | 2015 | 7,214,909 | 1,353,105 | 1,803,034 | 5,372,412 | 1,386,280 | 57,818 | 39,552 | 9,334,920 |
| 38 | 2016 | 4,276,265 | 1,350,979 | 1,563,373 | 5,298,838 | 1,298,579 | 84,200 | 21,592 | 8,373,085 |
| 39 | 2017 | 4,244,244 | 1,275,237 | 1,270,450 | 4,737,243 | 1,234,285 | 86,140 | 21,305 | 8,349,994 |
| 40 | 2018 | 5,105,903 | 1,296,710 | 1,424,695 | 5,388,042 | 1,524,548 | 269,466 | 28,407 | 8,771,166 |
| 41 | 2019 | 4,995,548 | 1,322,586 | 1,074,128 | 4,138,866 | 1,437,519 | 71,454 | 29,579 | 8,300,715 |
| 42 | 2020 | 3,805,221 | 672,594 | 645,758 | 1,886,668 | 688,822 | 7,771 | 37,602 | 5,693,284 |
| 43 | 2021 | 5,618,049 | 892,196 | 945,760 | 2,862,899 | 1,195,157 | 25,829 | 56,256 | 9,464,328 |
| 44 | 2022 | 4,864,282 | 798,992 | 922,725 | 2,685,769 | 872,983 | 2,333 | 49,262 | 10,147,084 |
| 45 | 2023 | 4,990,757 | 866,878 | 1,079,849 | 3,265,275 | 917,622 | 5,410 | 46,624 | 11,125,791 |
| 46 | 2024 | 5,193,444 | 804,519 | 1,133,976 | 4,153,010 | 755,166 | 6,133 | 49,004 | 12,046,248 |
| 47 | 2025 | 4,876,728 | 663,580 | 898,887 | 4,629,488 | 687,641 | 6,174 | 59,712 | 11,762,498 |
| 48 | 2026 | 638,635 | 150,569 | 251,981 | 949,277 | 155,097 | 1,903 | 14,335 | 2,147,462 |