From: Exposure to fluoridated water and attention deficit hyperactivity disorder prevalence among children and adolescents in the United States: an ecological association
Year
Median
Interquartile Range
1992
58.16
30.33
2000
58.62
31.83
2002
63.93
29.61
2004
66.24
26.99
2006
65.75
30.52
2008
66.33
30.39