SemGroup|1965|1966|1967|1968|1969|1970|1971|1972|1973|1974|1975|1976|1977|1978|1979|1980|1981|1982|1983|1984|1985|1986|1987|1988|1989|1990|1991|1992|1993|1994|1995|1996|1997|1998|1999|2000|2001|2002|2003|2004|2005|2006|2007|2008|2009|2010|2011|2012|2013|2014|2015|2016|2017|2018|2019|2020|2021|2022|2023|
Activities & Behaviors|1670|9741|14255|25761|28946|27187|28768|38765|37344|42342|46029|43382|43285|46328|58919|47501|45876|48611|54907|57541|61986|64707|63500|67516|85355|84499|90948|106978|100424|109865|119817|140944|144804|161824|140016|146617|145743|186337|213850|229589|225954|253255|272508|282243|279342|291442|289820|301354|275747|300130|308082|331846|312947|332539|349929|354069|437330|292912|211188|
Anatomy|9302|74764|106129|156998|192478|193204|192075|243033|232781|255933|272942|246052|234679|206689|227334|233655|252679|260067|278386|281980|289255|294465|273668|275176|326820|314551|328135|363467|327915|337492|354512|569653|427253|626311|389948|492850|401632|447122|669546|584768|453267|471099|508662|523911|506959|554149|509113|523745|512901|538466|557967|573776|594542|589178|632832|610506|830625|573639|406116|
Chemicals & Drugs|27383|237397|364695|513994|611911|599616|601745|801139|756057|831951|865461|787309|772475|645094|708987|759494|834588|907987|965442|992164|1055972|1094904|1031195|1057123|1262135|1269547|1358734|1521563|1400589|1466070|1590280|2347845|2007860|2439956|1944274|2172513|2153732|2199216|2704548|2641211|2434437|2379552|2557491|2526455|2479095|2554242|2487756|2590826|2501036|2539557|2595605|2610462|2634063|2541930|2549995|2423664|3285058|2886464|1857362|
Concepts & Ideas|2961|20653|32460|79485|110412|104195|108574|145994|147190|172305|169647|157038|152082|141445|173437|166118|163192|177943|192031|198150|212705|220213|203901|215765|271730|295710|331573|393358|382788|419084|459811|518956|563249|582663|559952|581619|615107|678638|779037|847767|845077|900803|978857|1009361|1027863|1047524|1064304|1118194|1069999|1113076|1137631|1197649|1221570|1190691|1226472|1221869|1475932|909414|628656|
Devices|652|3720|4818|7707|8535|8708|7938|10371|10651|10751|11221|9834|9870|10904|10398|11581|10773|11272|12527|12756|13592|14206|12547|12755|16232|17208|17152|19858|16668|18094|18992|28534|23726|27820|21072|20918|22732|25848|33338|34305|31110|34387|40302|39223|42149|43747|41993|43437|39971|43081|44283|47638|46394|50858|52982|48617|66466|45939|33132|
Disorders|23096|150300|184469|305248|344434|343442|331951|367507|346293|365676|377800|365132|360108|324159|336775|342013|383056|388808|421426|428057|445538|456886|427030|429021|507733|491198|500827|551357|490976|517211|542909|1112767|655941|1156414|616369|863691|648630|805184|1271097|1046082|802184|870250|970878|988322|954731|1069693|997901|1031271|1000078|1075366|1113001|1150399|1200167|1207362|1300706|1412572|1838670|1522360|1154211|
Genes & Molecular Sequences|26|467|957|1834|2314|2613|2986|4593|4497|5123|5998|5445|5780|5199|6450|6607|8252|9352|12697|14802|15242|16965|22065|31513|42960|57309|71202|87897|93818|107901|116968|108791|97619|85846|87382|83940|89916|81209|86211|98180|96737|98835|99606|101076|94109|90927|92649|98029|96903|94191|93365|94515|73357|68531|68638|66257|85558|49222|27422|
Geographic Areas|2597|16648|19598|28462|34473|30104|29363|34144|32369|40800|41845|43921|41360|46045|47042|48981|41484|45394|48446|48380|50226|49779|50873|53634|65424|61693|67193|73601|69793|71403|79421|115691|87853|100741|88505|92546|90530|110405|123573|130393|120445|130485|140158|142141|140807|153218|159187|166143|153524|168562|174067|193669|201512|200126|217354|231387|300454|179374|132421|
Living Beings|49717|339910|390173|538872|592779|575575|536919|618036|567202|605246|664138|708071|705980|669072|700347|727988|822826|842253|917117|924309|944968|970235|955206|966546|1171371|1117061|1136688|1249171|1141156|1189607|1258080|1839019|1526981|2203098|1439347|1777248|1491660|1746370|2378545|2208113|1818423|1951059|2117506|2188614|2200885|2421272|2334546|2424747|2326901|2531056|2603779|2749074|2857886|2909711|3120451|3224450|4344498|3154837|2266157|
Objects|1045|7476|11033|16897|21313|21099|21009|26849|25123|28302|27918|25179|24403|24842|27016|25796|25439|25403|30176|30412|31239|31975|30318|32003|36014|36156|36597|42827|36992|38455|41269|73946|51651|99389|51225|73270|57550|74470|102419|96461|82839|90227|105466|113608|112406|127256|125405|133598|126719|136101|146735|156204|149933|169343|177089|176267|247290|194800|143920|
Occupations|4714|33883|38648|50778|54751|47342|51210|48898|40865|48832|44245|44542|41187|38878|41239|42400|38095|39650|42981|41848|44840|43304|41190|41704|49168|44341|45838|51840|47771|49050|54539|249712|63567|121582|60506|84363|63571|88973|138662|130137|92958|104241|123159|128556|114484|137306|117932|117776|103312|114420|114027|120404|110977|114161|123725|116525|154933|111390|79492|
Organizations|615|4244|5496|8503|10425|9382|9182|11155|10908|13027|12654|11610|12689|17077|21960|17585|15429|14719|17053|17230|18082|18812|19504|20148|23000|22668|22852|27583|25418|25323|27624|41166|29356|46642|28890|33844|26925|37101|51898|46532|35318|38496|40852|40377|39023|44981|42965|44514|42157|44794|46378|48452|49659|50648|56468|59352|81218|55713|41394|
Phenomena|1810|15917|23639|36115|44315|44987|45860|65886|56312|63477|64069|57576|50832|42864|47807|48785|49642|50874|55443|56895|59953|61803|55831|58629|70627|70976|72372|82507|73212|77373|84468|129604|104261|142272|103302|125603|121542|138921|180847|177224|166858|178486|207196|211887|207593|220679|230011|242040|232270|244499|251949|262556|253245|260476|273479|307583|360262|263588|178133|
Physiology|6575|41692|67421|104990|121960|120905|130268|168320|160163|174689|186348|177552|165658|145375|162048|166217|175384|184955|199145|202537|212620|217329|203198|205382|252664|253447|271403|304853|280148|295590|317330|446441|395752|468042|382301|426794|423012|448333|552919|558654|534674|562648|597140|620431|620498|633626|633366|664206|651285|677279|697900|748754|782058|753805|790260|774828|1018268|641669|422486|
Procedures|19071|146467|147549|210939|240596|240338|238103|291710|283878|319031|309980|244027|245401|233470|259131|264017|281232|291586|316320|338001|358744|375877|359574|381923|488897|492157|526850|591523|537056|570489|608595|1017621|746332|871862|717916|778808|768380|841246|1044299|1041652|993261|1047854|1109513|1139779|1159064|1207776|1219347|1259252|1192692|1247728|1296072|1357280|1375362|1366393|1430645|1405339|1789468|1119815|765762|