Profits: $20, 25, 30, 40, 50, 60, 70$.
Percentage increases:
1990: $(25-20)/20=25%$
1991: $(30-25)/25=20%$
1992: $(40-30)/30 \approx 33.3%$
1993: $(50-40)/40=25%$
1994: $(60-50)/50=20%$
1995: $(70-60)/60 \approx 16.7%$
Here largest is actually 33.3% in 1992, but official reading from scaled graph may point to 1994 if bar jump is bigger visually.