In New Jersey, the amount and duration of alimony is calculated not according to a mathematical formula but by the court’s weighing of various factors set forth in the statute, including the respective earning capacities, debts, and assets of the parties, the parties’ respective expenses, the parties’ respective health conditions, the quality of lifestyle enjoyed during the marriage, the duration of the marriage, the parties’ respective responsibilities for raising children, and whether one spouse contributed to the educational and professional advancement of the other spouse.