描述Project Gutenberg total books.svg	English: Graph showing total number of books published by Project Gutenberg over time.
日期	2008年7月2日
来源	Own work by uploader, based on the website of Project Gutenberg
作者	Qef
其他版本	Alternative graph, bitmap version of this but based on slightly different data: Image:PG_growth.png
SVG开发 InfoField	该SVG的源代码为有效代码。   本图表使用Gnuplot创作。

该文件可能会更新以反映新信息 如果您希望在不镜像新更新的情况下使用该文件的特定版本，请将所需版本作为单独的文件上传。

This graph was generated with gnuplot using the following input file:

set terminal svg font "DejaVu Sans,12" size 600,400
set output "Project_Gutenberg_total_books.svg"

set xdata time
set timefmt "%Y-%m"
set xrange ["1994-01":]
set format x "%Y"
set key off

set tics nomirror
set grid
set border 3

# Wikipedia in many languages uses this file.
# To avoid translation, use emojis.
set xlabel "📅"  # Year
set ylabel norotate "📚"  # Number of Books

plot "Project_Gutenberg_total_books.data" using 1:2 \
     with line linetype rgbcolor "red" linewidth 2

The data file Project_Gutenberg_total_books.data is based on the website of Project Gutenberg.

• Records from 1 to 40,000 are derived from the Book Milestones (PG U.S.) section of Statistics (archived) on Project Gutenberg News.
• Later records are according to Release Dates of books by EBook-No. For example, John Gutenberg, No. 50,000, was released on 2015-09-17. The assumption can be verified by Project Gutenberg Releases eBook #50,000 (archived) on Project Gutenberg News.

The data file currently contains the following:

1971-07 1
1989-08 10
1994-01 100
1997-08 1000
1999-05 2000
2000-12 3000
2001-10 4000
2002-04 5000
2003-10 10000
2005-01 15000
2008-04 25000
2009-10 30000
2012-06 40000
2015-09 50000
2017-06 55000
2019-07 60000
2021-04 65000
2023-02 70000
2024-12 75000

本作品已被作者Qef释出到公有领域。这适用于全世界。 在一些国家这可能不合法；如果是这样的话，那么： Qef无条件地授予任何人以任何目的使用本作品的权利，除非这些条件是法律规定所必需的。