"Figure 6: In 2015, the combined all species index increased by 17% and showed no significant change in recent years","" "Number of mammal species, Great Britain, 2004 to 2017","" "","" "Notes","" "Unit","Index, 2004 = 100" "","" "Year","Smoothed Index","Lower confidence ","Upper confidence" "2004","100.00","100.00","100.00" "2005","105.81","101.47","110.34" "2006","110.04","102.05","118.66" "2007","110.72","100.59","121.86" "2008","107.85","96.94","119.99" "2009","104.89","93.45","117.72" "2010","103.83","91.67","117.60" "2011","104.93","92.07","119.59" "2012","107.57","94.45","122.51" "2013","110.92","97.35","126.37" "2014","114.67","100.25","131.18" "2015","116.74","101.42","134.36" "2016","115.16","99.44","133.35" "2017","111.79","95.56","130.78"