Of those interviewed, 89 percent said that it takes good health; 79 percent mentioned a satisfying marriage or partnership; 62 percent pointed to the rewards of parenthood; and 51 percent thought a successful career was needed for happiness.
हा प्रश्‍न काही वर्षांआधी, फ्रान्स, जर्मनी, ब्रिटन आणि संयुक्‍त संस्थानांत घेतलेल्या एका जनमतात लोकांना विचारण्यात आला.