PH krav - kilogramů bílkovin
| Rok | Počet | PH | SD |
| 1994 | 42230 | -11.30 | 9.88 |
| 1995 | 45326 | -10.86 | 10.53 |
| 1996 | 47945 | -10.64 | 11.41 |
| 1997 | 51245 | -9.26 | 11.90 |
| 1998 | 53313 | -7.68 | 12.43 |
| 1999 | 56388 | -5.87 | 12.79 |
| 2000 | 59649 | -4.77 | 12.83 |
| 2001 | 60763 | -3.29 | 13.28 |
| 2002 | 62146 | -1.87 | 13.56 |
| 2003 | 63797 | -1.38 | 13.87 |
| 2004 | 62757 | -1.35 | 14.02 |
| 2005 | 61753 | -1.19 | 13.98 |
| 2006 | 61698 | -.76 | 14.09 |
| 2007 | 59476 | .52 | 14.09 |
| 2008 | 58828 | .49 | 14.42 |
| 2009 | 60989 | 1.07 | 14.40 |
| 2010 | 58830 | 1.64 | 14.30 |
| 2011 | 60200 | 1.72 | 14.37 |
| 2012 | 61848 | 2.43 | 14.12 |
| 2013 | 62012 | 2.52 | 13.95 |
| 2014 | 64353 | 3.00 | 13.92 |
| 2015 | 64028 | 4.42 | 14.08 |
| 2016 | 65600 | 5.03 | 13.93 |
| 2017 | 66136 | 6.58 | 14.34 |
| 2018 | 67344 | 8.27 | 14.36 |
| 2019 | 67959 | 10.87 | 13.61 |
| 2020 | 69096 | 13.31 | 13.08 |
| 2021 | 43143 | 15.81 | 12.61 |
| 2022 | 237 | 21.72 | 10.45 |