I've been trying to fill a Warman's book with Lincoln cents since 1959 with pennies out of pocket change. I've been at it a year now. I need 10 pennies to fill it up. The first 3 pennies I need are the 59 p&d and the 62 d. After that 6 of the pennies minted in San Fran. I have the 71s. But the tenth penny I need is a 2005d and that really gets me wondering why. The book states that there were 3.8 billion of them made. Why would it be taking me so long to come across one?