Table 2.
Worldwide publication trends of research on GPs
| Year | Records | Cumulative | RGR | Dt |
|---|---|---|---|---|
| 1999 | 392 | 392 | — | — |
| 2000 | 414 | 806 | 0.72 | 0.96 |
| 2001 | 474 | 1280 | 0.46 | 1.50 |
| 2002 | 550 | 1830 | 0.36 | 1.94 |
| 2003 | 623 | 2453 | 0.29 | 2.37 |
| 2004 | 535 | 2988 | 0.20 | 3.51 |
| 2005 | 644 | 3632 | 0.20 | 3.55 |
| 2006 | 627 | 4259 | 0.16 | 4.35 |
| 2007 | 798 | 5057 | 0.17 | 4.04 |
| 2008 | 918 | 5975 | 0.17 | 4.16 |
| 2009 | 846 | 6821 | 0.13 | 5.23 |
| 2010 | 825 | 7646 | 0.11 | 6.07 |
| 2011 | 765 | 8411 | 0.10 | 7.27 |
| 2012 | 831 | 9242 | 0.09 | 7.36 |
| 2013 | 788 | 10030 | 0.08 | 8.47 |
| 2014 | 674 | 10704 | 0.07 | 10.66 |
Note: Records: the number of articles published in a specific year; Cumulative: the cumulative number of articles published from 1999 to a specific year; RGR: relative growth rate; Dt: double time