+-------+----------+--------------+-------------------+ | Year | Research | Not research | Research fraction | +-------+----------+--------------+-------------------+ | 1995 | 363007 | 85576 | 80.9 | | 1996 | 370198 | 87896 | 80.8 | | 1997 | 363577 | 92127 | 79.8 | | 1998 | 378481 | 95424 | 79.9 | | 1999 | 390468 | 102615 | 79.2 | | 2000 | 421771 | 107840 | 79.6 | | 2001 | 429734 | 113286 | 79.1 | | 2002 | 439721 | 118445 | 78.8 | | 2003 | 457320 | 126100 | 78.4 | | 2004 | 487038 | 132345 | 78.6 | | 2005 | 521093 | 134582 | 79.5 | | 2006 | 545681 | 138391 | 79.8 | | 2007 | 569964 | 139565 | 80.3 | | 2008 | 606463 | 143759 | 80.8 | | 2009 | 638608 | 144718 | 81.5 | | 2010 | 672589 | 149643 | 81.8 | | 2011 | 718523 | 156326 | 82.1 | | 2012 | 775637 | 163479 | 82.6 | | 2013 | 811789 | 181971 | 81.7 | | 2014 | 845090 | 195823 | 81.2 | | 2015 | 878182 | 209943 | 80.7 | | 2016 | 896432 | 209084 | 81.1 | | 2017 | 935012 | 189792 | 83.1 | | 2018 | 927277 | 123246 | 88.3 | | Total | 14444982 | 3342034 | 81.2 | +-------+----------+--------------+-------------------+