39. The average American car got 13 miles per gallon in 1975, and more than 26 miles per gallon in 2013, according to the Energy Protection Agency. This has an effect identical to cutting the cost of gasoline in half.

40. Annual inflation in the United States hasn't been above 10% since 1981 and has been below 5% in 77% of years over the past seven decades. When you consider all the hatred directed toward the Federal Reserve, this is astounding.

41. The percentage of Americans age 65 and older who live in poverty has dropped from nearly 30% in 1966 to less than 10% by 2010. For the elderly, the war on poverty has pretty much been won.

42. Adjusted for inflation, the average monthly Social Security benefit for retirees has increased from $378 in 1940 to $1,277 by 2010. What used to be a safety net is now a proper pension.

43. If you think Americans aren't prepared for retirement today, you should have seen what it was like a century ago. In 1900, 65% of men over age 65 were still in the labor force. By 2010, that figure was down to 22%. The entire concept of retirement is unique to the past few decades. Half a century ago, most Americans worked until they died.

44. From 1920 to 1980, an average of 395 people per 100,000 died from famine worldwide each decade. During the 2000s, that fell to three per 100,000, according to The Economist.

45. The cost of solar panels has declined by 75% since 2008, according to the Department of Energy. Last I checked, the sun is offering its services for free. 

46. As recently as 1950, nearly 40% of American homes didn't have a telephone. Today, there are 500 million Internet-connected devices in America, or enough for 5.7 per household.

47. According to AT&T archives and the Dallas Fed, a three-minute phone call from New York to San Francisco cost $341 in 1915, and $12.66 in 1960, adjusted for inflation. Today, Republic Wireless offers unlimited talk, text, and data for $5 a month.

48. In 1990, the American auto industry produced 7.15 vehicles per auto employee. In 2010 it produced 11.2 vehicles per employee. Manufacturing efficiency has improved dramatically.

49. You need an annual income of $34,000 a year to be in the richest 1% of the world, according to World Bank economist Branko Milanovic's 2010 book The Haves and the Have-Nots. To be in the top half of the globe you need to earn just $1,225 a year. For the top 20%, it's $5,000 per year. Enter the top 10% with $12,000 a year. To be included in the top 0.1% requires an annual income of $70,000. America's poorest are some of the world's richest. 

50. Only 4% of humans get to live in America. Odds are you're one of them. We've got it made. Be thankful.