Table 1. Number of domestic botanical garden (Number/ratio)
| Division | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 |
| National | - | - | - | 1 ( 4) | 1 ( 3) | 1 ( 3) | 1 ( 3) |
| Public | 8 ( 33) | 8 ( 33) | 8 ( 33) | 9 ( 32) | 12 ( 39) | 12 ( 39) | 12 ( 38) |
| Private | 11 ( 46) | 11 ( 46) | 11 ( 46) | 13 ( 46) | 13 ( 42) | 13 ( 42) | 14 ( 44) |
| School | 5 ( 21) | 5 ( 21) | 5 ( 21) | 5 ( 18) | 5 ( 16) | 5 ( 16) | 5 ( 16) |
| Total | 24 (100) | 24 (100) | 24 (100) | 28 (100) | 31 (100) | 31 (100) | 32 (100) |
| Division | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| National | 1 ( 3) | 1 ( 2) | 1 ( 2) | 1 ( 2) | 1 ( 2) | 1 ( 2) | 2 ( 4) |
| Public | 14 ( 41) | 18 ( 44) | 19 ( 44) | 21 ( 47) | 22 ( 47) | 24 ( 49) | 30 ( 54) |
| Private | 14 ( 41) | 16 ( 39) | 17 ( 40) | 17 ( 38) | 18 ( 38) | 18 ( 37) | 18 ( 32) |
| School | 5 ( 15) | 6 ( 15) | 6 ( 14) | 6 ( 13) | 6 ( 13) | 6 ( 12) | 6 ( 11) |
| Total | 34 (100) | 41 (100) | 43 (100) | 45 (100) | 47 (100) | 49 (100) | 56 (100) |
| Division | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 |
| National | 2 ( 3) | 2 ( 3) | 3 ( 5) | 3 ( 5) | 3 ( 4) | 3 ( 4) | 3 ( 4) |
| Public | 40 ( 67) | 41 ( 66) | 42 ( 67) | 42 ( 64) | 42 ( 61) | 43 ( 61) | 43 ( 60) |
| Private | 15 ( 25) | 16 ( 26) | 16 ( 25) | 18 ( 27) | 21 ( 30) | 21 ( 30) | 23 ( 32) |
| School | 3 (5) | 3 (5) | 3 (5) | 3 (5) | 3 (4) | 3 (4) | 3 (4) |
| Total | 60 (100) | 62 (100) | 64 (100) | 66 (100) | 69 (100) | 70 (100) | 72 (100) |