| 2009: |
| [20090825]: |
| Public release of the database version 1.0 is started |
| [20090122]: |
| Data version 0.06 is released! |
| [20090119]: |
| Data version 0.04 is released! |
| 2008: |
| [20081015]: |
| Data version 0.01 is released! |
| [20080912]: |
| A draft specification version 0.4 is created. |
| [20080825]: |
| A draft specification version 0.3 is created. |