### Database Schema:
CREATE TABLE PaperAuthor (
	PaperId	INTEGER	NULL,
	AuthorId	INTEGER	NULL,
	Name	TEXT	NULL,
	Affiliation	TEXT	NULL,
	foreign key (AuthorId) references Author (Id),
	foreign key (PaperId) references Paper (Id)
);

CREATE TABLE Author (
	Id	INTEGER	NULL	PRIMARY KEY,
	Name	TEXT	NULL,
	Affiliation	TEXT	NULL
);

CREATE TABLE Paper (
	Id	INTEGER	NULL	PRIMARY KEY,
	Title	TEXT	NULL,
	Year	INTEGER	NULL,
	ConferenceId	INTEGER	NULL,
	JournalId	INTEGER	NULL,
	Keyword	TEXT	NULL,
	foreign key (JournalId) references Journal (Id),
	foreign key (ConferenceId) references Conference (Id)
);

CREATE TABLE Journal (
	Id	INTEGER	NULL	PRIMARY KEY,
	ShortName	TEXT	NULL,
	FullName	TEXT	NULL,
	HomePage	TEXT	NULL
);

CREATE TABLE Conference (
	Id	INTEGER	NULL	PRIMARY KEY,
	ShortName	TEXT	NULL,
	FullName	TEXT	NULL,
	HomePage	TEXT	NULL
);

### User's Query:
What percentage of journals whose short name begins with ANN were published in the paper database in 1989?

### Extra Knowledge:
short name begins with ANN refers to ShortName like 'ANN%' ; percentage refers to DIVIDE(COUNT(ShortName like 'ANN%' ), COUNT(id)) * 100%;  in 1989 refers to Year = 1989
SELECT CAST((SUM(CASE WHEN T1.ShortName LIKE 'ANN%' THEN 1 ELSE 0 END)) AS REAL) * 100 / COUNT(T1.ShortName) FROM Journal AS T1 INNER JOIN Paper AS T2 ON T1.Id = T2.JournalId WHERE T2.Year = 1989