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 | 69 | 16 |
| 1981 | 85 | 16 |
| 1982 | 117 | 32 |
| 1983 | 153 | 36 |
| 1984 | 174 | 21 |
| 1985 | 193 | 19 |
| 1986 | 210 | 17 |
| 1987 | 235 | 25 |
| 1988 | 287 | 52 |
| 1989 | 358 | 71 |
| 1990 | 493 | 135 |
| 1991 | 655 | 162 |
| 1992 | 836 | 181 |
| 1993 | 1458 | 622 |
| 1994 | 2525 | 1067 |
| 1995 | 3275 | 750 |
| 1996 | 4258 | 983 |
| 1997 | 5493 | 1235 |
| 1998 | 7216 | 1723 |
| 1999 | 9176 | 1960 |
| 2000 | 11415 | 2239 |
| 2001 | 13800 | 2385 |
| 2002 | 16325 | 2525 |
| 2003 | 19911 | 3586 |
| 2004 | 24310 | 4399 |
| 2005 | 28738 | 4428 |
| 2006 | 34249 | 5511 |
| 2007 | 40388 | 6139 |
| 2008 | 46585 | 6197 |
| 2009 | 53250 | 6665 |
| 2010 | 60409 | 7159 |
| 2011 | 67752 | 7343 |
| 2012 | 75902 | 8150 |
| 2013 | 84610 | 8708 |
| 2014 | 93422 | 8812 |
| 2015 | 102012 | 8590 |
| 2016 | 111949 | 9937 |
| 2017 | 122027 | 10078 |
| 2018 | 131895 | 9868 |
| 2019 | 141547 | 9652 |
| 2020 | 152787 | 11240 |
| 2021 | 156318 | 3531 |
