110.6 million Americans aged 18 and over were married and living with one another last year, representing 56 percent of the adult population. (Census Bureau) After five years, 20 percent of all first marriages have disrupted due to separation or divorce. While 26.5 percent of women have divorced at the end of ten years of marriage, 33 percent of all first marriages have disrupted due to either separation or divorce at the end of ten years. (Center of Disease Control) First marriages, which end in divorce last an average of 7 to 8 years. (Census Bureau) 43 percent of new marriages are likely to end in divorce (National Center for health Statistics) Between 1970 and 1996, the number of divorced people more than quadrupled. (Census Bureau) Nearly 70 percent of all married men and 60% of married women have had affairs. That's about two out of every three marriages. (www.ivillage.com) More than 90% of divorces in long-standing marriages involve infidelities some time during the marriage. ( www.ivillage.com) 52 percent of married people reach their 15th anniversary, 33 percent reach their 25th anniversary, 20 percent reach their 35th anniversary, and only 5 percent reach their 50th anniversary. ( www.divorcemag.com )