PDB Statistics: Growth of Structures from X-ray Crystallography Experiments Released per Year
Experimental methods such as X-ray crystallography, NMR spectroscopy, and 3D electron microscopy are used to determine the location of each atom relative to each other in the molecule.
| Year | Total Number of Entries Available | Number of Structures Released Annually |
|---|---|---|
| 1976 | 13 | 13 |
| 1977 | 36 | 23 |
| 1978 | 42 | 6 |
| 1979 | 53 | 11 |
| 1980 | 60 | 7 |
| 1981 | 76 | 16 |
| 1982 | 108 | 32 |
| 1983 | 144 | 36 |
| 1984 | 165 | 21 |
| 1985 | 184 | 19 |
| 1986 | 201 | 17 |
| 1987 | 226 | 25 |
| 1988 | 278 | 52 |
| 1989 | 348 | 70 |
| 1990 | 483 | 135 |
| 1991 | 645 | 162 |
| 1992 | 826 | 181 |
| 1993 | 1448 | 622 |
| 1994 | 2505 | 1057 |
| 1995 | 3253 | 748 |
| 1996 | 4232 | 979 |
| 1997 | 5466 | 1234 |
| 1998 | 7189 | 1723 |
| 1999 | 9149 | 1960 |
| 2000 | 11383 | 2234 |
| 2001 | 13761 | 2378 |
| 2002 | 16286 | 2525 |
| 2003 | 19872 | 3586 |
| 2004 | 24266 | 4394 |
| 2005 | 28692 | 4426 |
| 2006 | 34200 | 5508 |
| 2007 | 40338 | 6138 |
| 2008 | 46536 | 6198 |
| 2009 | 53199 | 6663 |
| 2010 | 60358 | 7159 |
| 2011 | 67704 | 7346 |
| 2012 | 75854 | 8150 |
| 2013 | 84567 | 8713 |
| 2014 | 93383 | 8816 |
| 2015 | 101977 | 8594 |
| 2016 | 111920 | 9943 |
| 2017 | 122003 | 10083 |
| 2018 | 131894 | 9891 |
| 2019 | 139829 | 7935 |
