p-index (P1)
P1 (van Eck and Waltman 2008), also known as the p-index, is simply the number of publications which have received at least one citation.
History
| Year | P1 |
|---|---|
| 1997 | 2 |
| 1998 | 5 |
| 1999 | 7 |
| 2000 | 8 |
| 2001 | 13 |
| 2002 | 18 |
| 2003 | 21 |
| 2004 | 24 |
| 2005 | 29 |
| 2006 | 31 |
| 2007 | 32 |
| 2008 | 35 |
| 2009 | 37 |
| 2010 | 44 |
| 2011 | 46 |
| 2012 | 49 |
| 2013 | 51 |
| 2014 | 57 |
| 2015 | 59 |
| 2016 | 61 |
| 2017 | 62 |
| 2018 | 65 |
| 2019 | 67 |
| 2020 | 68 |
| 2021 | 70 |
| 2022 | 72 |
| 2023 | 74 |
| 2024 | 78 |