(b) In what decade(s) was the gender gap expanding? Select all that apply. 1960 - 1970 1970 - 1980 1980 1990 1990 - 2000 none In what decade(s) was the gender gap shrinking? Select all that apply. 1960 - 1970 1970-1980 1980 - 1990 1990 - 2000 none (c) Refer to part (b). How fast was the gender gap expanding or shrinking in each of these decades? (Enter all answers as positive values.) Rate (per yr) Decade 1960 - 1970 1970 - 1980 1980 1990 1990-2000 -Select--- -Select--- -Select--- Select---

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