TCPDF error: Unsupported image type: jsp?graphdata=475_27_1996:-1:000000000000_1997:-1:000000000000_1998:-1:000000000000_1999:-1:000000000000_2000:-1:000000000000_2001:-1:010101000010_2002:-1:010000001101_2003:-1:010100110101_2004:-1:010101000101_2005:1:010000000000_2006:-1:000010000000_2007:-1:000000001000_2008:-1:000000000000_2009:-1:000000000000_2010:-1:000000000000_2011:-1:000000000000_2012:-1:000000000000_2013:-1:000000000000_2014:-1:000000000000