Table 3 Trend in the number of journals classified in the Public, Environmental and Occupational Health category.
From: Time trends in the impact factor of Public Health journals
Year | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of journals | 58 | 60 | 58 | 60 | 61 | 73 | 80 | 84 | 87 | 88 | 90 | 89 |