Step 1: The variable pli0007_h is replaced by the variable pli0007_v1 for the years 1984 to 1990.
Step 2: The variable pli0007_h is replaced by the variable pli0007_v5 for the years 1992, 1993, 1995, 1997, 1999, 2001, 2003, 2005, 2007, 2009, 2011 to 2013, 2015, 2017, 2019 and 2021.
Step 3: The variable pli0007_h is replaced with pli0007_v4 for the year 1990, if pli0007_v4 is greater than 0 and pli0007_v3 is less than 0 and pli0007_v2 is less than 0 and pli0007_v4 is less than 0.
Step 4: The variable pli0007_h is replaced with pli0007_v3 for the year 1990, if pli0007_v3 is greater than 0 and pli0007_v3 is less than 0 and pli0007_v2 is less than 0 and pli0007_v4 is less than 0.
Step 5: The variable pli0007_h is replaced with pli0007_v2 for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v3 is less than 0 and pli0007_v2 is less than 0 and pli0007_v4 is less than 0.
Step 6: The variables pli0007_v2 and pli0007_v4 are added and then divided by 2 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v4 is greater than 0 and pli0007_v3 is less than 0.
Step 7: The variables pli0007_v3 and pli0007_v4 are added and then divided by 2 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v3 is greater than 0 and pli0007_v4 is greater than 0 and pli0007_v2 is less than 0.
Step 8: The variables pli0007_v2 and pli0007_v3 are added and then divided by 2 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v3 is greater than 0 and pli0007_v4 is less than 0.
Step 9: The variables pli0007_v2, pli0007_v3 and pli0007_v4 are added and then divided by 3 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v3 is greater than 0 and pli0007_v4 is greater than 0.
Step 1: The variable pli0007_h is replaced by the variable pli0007_v1 for the years 1984 to 1990.
Step 2: The variable pli0007_h is replaced by the variable pli0007_v5 for the years 1992, 1993, 1995, 1997, 1999, 2001, 2003, 2005, 2007, 2009, 2011 to 2013, 2015, 2017, 2019 and 2021.
Step 3: The variable pli0007_h is replaced with pli0007_v4 for the year 1990, if pli0007_v4 is greater than 0 and pli0007_v3 is less than 0 and pli0007_v2 is less than 0 and pli0007_v4 is less than 0.
Step 4: The variable pli0007_h is replaced with pli0007_v3 for the year 1990, if pli0007_v3 is greater than 0 and pli0007_v3 is less than 0 and pli0007_v2 is less than 0 and pli0007_v4 is less than 0.
Step 5: The variable pli0007_h is replaced with pli0007_v2 for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v3 is less than 0 and pli0007_v2 is less than 0 and pli0007_v4 is less than 0.
Step 6: The variables pli0007_v2 and pli0007_v4 are added and then divided by 2 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v4 is greater than 0 and pli0007_v3 is less than 0.
Step 7: The variables pli0007_v3 and pli0007_v4 are added and then divided by 2 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v3 is greater than 0 and pli0007_v4 is greater than 0 and pli0007_v2 is less than 0.
Step 8: The variables pli0007_v2 and pli0007_v3 are added and then divided by 2 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v3 is greater than 0 and pli0007_v4 is less than 0.
Step 9: The variables pli0007_v2, pli0007_v3 and pli0007_v4 are added and then divided by 3 in order to create a mean and subsequently integrated into the harmonized variable pli0007_h for the year 1990, if pli0007_v2 is greater than 0 and pli0007_v3 is greater than 0 and pli0007_v4 is greater than 0.