"x"
"1" 0
"2" 0
"3" 0.5
"4" 0.5
"5" 0
"6" 0
"7" 0
"8" 0
"9" 0
"10" 0
"11" 0
"12" 0
"13" 0
"14" 0
"15" 0
"16" 0
"17" 0
"18" 0.5
"19" 0.5
"20" 0
"21" 0
"22" 0
"23" 0
"24" 0
"25" 0
