What was the change in the Additions for tax positions of the current year between 2018 and 2019?
{"Beginning of fiscal year": {"2019": 8680, "2018": 7390, "2017": 7103}, "Additions from business combinations": {"2019": "\u2014", "2018": 1270, "2017": "\u2014"}, "Additions for tax positions of the current year": {"2019": 2027, "2018": 1078, "2017": 762}, "Additions for tax positions of prior years": {"2019": 519, "2018": "\u2014", "2017": "\u2014"}, "Reductions for tax positions of prior years": {"2019": -633, "2018": -1058, "2017": -64}, "Lapse in statute of limitations": {"2019": -9, "2018": "\u2014", "2017": -411}, "Settlements": {"2019": -2923, "2018": "\u2014", "2017": "\u2014"}, "End of fiscal year": {"2019": 7661, "2018": 8680, "2017": 7390}}
additions_for_tax_positions_of_the_current_year_2019 = df["Additions for tax positions of the current year"]["2019"]
additions_for_tax_positions_of_the_current_year_2018 = df["Additions for tax positions of the current year"]["2018"]
answer = additions_for_tax_positions_of_the_current_year_2019 - additions_for_tax_positions_of_the_current_year_2018