Fill in the Blanks Prepositions for trend graphsOnline version Choose the correct preposition for each blank based on the meaning by Huy Ngô 1 The figure for the population of immigrants who work in healthcare Australia rose 10 million . ( 10 million - > 20 million ) 2 The proportion of immigrants living in the slums increased 25% in 2010 . ( 17% - > 25% ) 3 The average number of earthquakes saw a growth 3 per year . ( 6 - > 9 ) 4 In 2017 , the number of cases related to juvenile delinquencies fell 10% . ( 25% - > 15% ) 5 Last year , the number of locals who became advocates for the preservation of heritage sites dropped 10% . ( 30% - > 10% ) 6 This year , that of Austria witnessed a decline 4% . ( 30% - > 26% ) 7 However , in the following year , the figure remained stable 26% . 8 The number of Malaysian immigrants working white collar jobs peaked 6 million . 9 The number of Malaysian immigrants working white collar reached a peak 6 million . 10 The number of people who did groceries weekly began 10000 and ended 60000 by the end of the examined decade . 11 The figure for yearly museum visitors fluctuated from 6% 8% . 12 The figure for yearly museum visitors fluctuated between 6% 8% .