Table 1 The volume of each sub-corpus (number of tokens/number of sentences).

From: A corpus-based study of passive voice trajectories in methods sections across three academic branches (1980–2020)

 

1980

1990

2000

2010

2020

Total

HU

26,917/1223

26,225/1196

28,793/1295

33,999/1482

40,180/1821

156,114/7017

NS

14,711/807

24,409/1167

30,222/1463

40,795/1980

42,338/2016

152,475/7433

SS

31,021/1582

28,527/1446

46,548/2511

55,155/2883

58,990/3117

220,241/11,539

Total

72,649/3612

79,161/3809

105,563/5269

129,949/6345

141,508/6954

528,830/25,989

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