_id	Major Group of Species	Estimated Number of described species	Number of species evaluated by  2013	threatened species_1998	threatened species_2000	threatened species_2002	threatened species_2003	threatened species_2004	threatened species_2006	threatened species_Y2007	threatened species_Y2008	threatened species_Y2009	threatened species_Y2010	threatened species_Y2011	threatened species_Y2012	threatened species_Y2013	threatened species_Y2014	threatened species_Y2015	threatened species_Y2016	threatened species_Y2017	Species evaluted in 2017_as % of  species described
1	Mammals	5506	5506	1096	1130	1137	1130	1101	1093	1094	1141	1142	1131	1138	1139	1143	1199	1197	1194	1204	1
2	Birds	10065	10065	1107	1183	1192	1194	1213	1206	1217	1222	1223	1240	1253	1313	1308	1373	1375	1460	1469	1
3	Reptiles	9831	4204	253	296	293	293	304	341	422	423	469	594	772	807	879	927	944	1079	1215	1
4	Amphibians	7044	6409	124	146	157	157	1770	1811	1808	1905	1895	1898	1917	1933	1950	1957	1994	2068	2100	1
5	Fishes	32700	11172	734	752	742	750	800	1171	1201	1275	1414	1851	2028	2058	2110	2222	2271	2359	2386	0
6	Insects	1000000	4610	537	555	557	553	559	623	623	626	711	733	741	829	896	993	1046	1268	1414	0
7	Molluscs	85000	6809	920	938	939	967	974	975	978	978	1036	1288	1673	1857	1898	1950	1950	1984	2187	0
8	Crustaceans	47000	3163	407	408	409	409	429	459	460	606	606	596	596	596	723	1950	1950	732	732	0
9	Corals	2175	856	1	1	1	1	1	1	4	235	235	235	235	236	235	235	237	237	237	0
10	Arachnids	102248	35	11	11	11	11	11	11	11	18	18	19	19	20	21	163	164	166	170	0
11	Velvet Worms	165	11	6	6	6	9	9	9	9	9	9	9	9	9	9	9	9	9	9	0
12	Horseshoe Crabs	4	4	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1
13	Mosses	16236	102		80	80	80	80	80	80	82	82	80	80	76	76	76	76	76	76	0
14	Ferns and Allies	12000	342				111	140	139	139	139	139	148	163	167	187	194	197	217	246	0
15	Gymnosperms	1052	1010	142	141	142	304	305	306	321	323	322	371	377	374	399	400	400	400	401	1
16	Flowiering Plants	268000	16766	5186	5390	5492	6279	7796	7865	7899	7904	7948	8116	8527	8764	9394	9905	10551	10941	11773	0
17	Green Algae	4242	13							0	0	0	0	0	0	0	0	0	0	0	0
18	Red Algae	6144	58							9	9	9	9	9	9	9	9	9	9	9	0
19	Lichens	17000	2				2	2	2	2	2	2	2	2	2	2	4	7	7	10	0
20	Mushrooms	31496	1						1	1	1	1	1	1	1	1	1	22	21	33	0
21	Brown Algae	3127	15							6	6	6	6	6	6	6	6	6	6	6	0