1600 4 million, 1700 5 million, 1800 9 million, 1850 20 million, 1900 40 million, 1950 50 million, 1998 57 million, 2005 60 million, 2010 62 million

1600 4 million, 1700 5 million, 1800 9 million, 1850 20 million, 1900 40 million, 1950 50 million, 1998 57 million, 2005 60 million, 2010 62 million