The biggest issue within the United States is demographics. Believe or not there just isn’t enough younger people.
Here is a breakdown of Births with in the United States per year according to the National Vital Statistics Reports from the Centers of Disease and Control (CDC):
2015 | 3,978,497 | 2007 | 4,316,233 | 1999 | 3,959,417 | ||
2014 | 3,988,076 | 2006 | 4,265,555 | 1998 | 3,941,553 | ||
2013 | 3,932,181 | 2005 | 4,138,349 | 1997 | 3,880,894 | ||
2012 | 3,952,841 | 2004 | 4,112,052 | 1996 | 3,891,494 | ||
2011 | 3,953,590 | 2003 | 4,089,950 | 1995 | 3,899,589 | ||
2010 | 3,999,386 | 2002 | 4,021,726 | 1994 | 3,952,767 | ||
2009 | 4,130,665 | 2001 | 4,025,933 | 1993 | 4,000,240 | ||
2008 | 4,247,694 | 2000 | 4,058,814 | 1992 | 4,065,014 |
1991 | 4,110,907 | 1983 | 3,638,933 | 1975 | 3,144,198 | ||
1990 | 4,158,212 | 1982 | 3,680,537 | 1974 | 3,159,958 | ||
1989 | 4,040,958 | 1981 | 3,629,238 | 1973 | 3,136,965 | ||
1988 | 3,909,510 | 1980 | 3,612,258 | 1972 | 3,258,411 | ||
1987 | 3,809,394 | 1979 | 3,494,398 | 1971 | 3,555,970 | ||
1986 | 3,756,547 | 1978 | 3,333,279 | 1970 | 3,731,386 | ||
1985 | 3,760,561 | 1977 | 3,326,632 | 1969 | 3,600,206 | ||
1984 | 3,669,141 | 1976 | 3,167,788 | 1968 | 3,501,564 |
1967 | 3,520,959 | 1959 | 4,244,796 | 1951 | 3,750,850 | ||
1966 | 3,606,274 | 1958 | 4,203,812 | 1950 | 3,554,159 | ||
1965 | 3,760,358 | 1957 | 4,254,784 | 1949 | 3,559,529 | ||
1964 | 4,027,490 | 1956 | 4,163,090 | 1948 | 3,535,068 | ||
1963 | 4,098,020 | 1955 | 4,047,295 | 1947 | 3,699,940 | ||
1962 | 4,167,326 | 1954 | 4,017,362 | 1946 | 3,288,672 | ||
1961 | 4,268,326 | 1953 | 3,902,120 | ||||
1960 | 4,257,850 | 1952 | 3,846,986 |