Using JMP 16 I created the following graph

The data table has 3 data points for each age

I opened Graph Builder and dragged the Data column to the Y drop area, the Age column to the X drop area and I also dragged the Age column to the Overlay drop area

I then added a line and selected the Row Order check box

( adjusted the Jitter Limit for the Points

It then just became a matter of changing the marker and the marker color for each of the legend setting

Names default to here(1);
New Table(
"Example",
Add Rows( 18 ),
New Column( "Age", Ordinal,
Set Values(
[12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17]
)
),
New Column( "Data",
Format( "Fixed Dec", 12, 1 ),
Set Values(
[51, 58.125, 66, 56, 60.2857142857143, 65, 61, 64.1666666666667, 69, 62,
64.5714285714286, 67, 60, 64.3333333333333, 68, 62, 66.6666666666667, 70
]
)
)
);
Graph Builder(
Size( 525, 448 ),
Show Control Panel( 0 ),
Error Bar Offset( 0 ),
Graph Spacing( 0 ),
Variables( X( :age ), Y( :Data ), Overlay( :age ) ),
Elements(
Line( X, Y, Legend( 7 ), Row order( 1 ), Missing Values( "No Connection" ) ),
Points( X, Y, Legend( 11 ), Jitter Limit( 0 ) )
),
SendToReport(
Dispatch(
{},
"400",
ScaleBox,
{Legend Model(
7,
Properties( 0, {Line Color( 0 )}, Item ID( "12", 1 ) ),
Properties( 1, {Line Color( 0 )}, Item ID( "13", 1 ) ),
Properties( 2, {Line Color( 0 )}, Item ID( "14", 1 ) ),
Properties( 3, {Line Color( 0 )}, Item ID( "15", 1 ) ),
Properties( 4, {Line Color( 0 )}, Item ID( "16", 1 ) ),
Properties( 5, {Line Color( 0 )}, Item ID( "17", 1 ) )
), Legend Model(
11,
Base( 0, 0, 0, Item ID( "12", 1 ) ),
Base( 1, 0, 0, Item ID( "13", 1 ) ),
Base( 2, 0, 0, Item ID( "14", 1 ) ),
Base( 3, 0, 0, Item ID( "15", 1 ) ),
Base( 4, 0, 0, Item ID( "16", 1 ) ),
Base( 5, 0, 0, Item ID( "17", 1 ) ),
Properties(
0,
{Line Color( 0 ), Marker( "Minus" )},
Item ID( "12", 1 )
),
Properties(
1,
{Line Color( 0 ), Marker( "Minus" )},
Item ID( "13", 1 )
),
Properties(
2,
{Line Color( 0 ), Marker( "Minus" )},
Item ID( "14", 1 )
),
Properties(
3,
{Line Color( 0 ), Marker( "Minus" )},
Item ID( "15", 1 )
),
Properties(
4,
{Line Color( 0 ), Marker( "Minus" )},
Item ID( "16", 1 )
),
Properties(
5,
{Line Color( 0 ), Marker( "Minus" )},
Item ID( "17", 1 )
)
)}
),
Dispatch(
{},
"Graph Builder",
FrameBox,
{Marker Size( 6 ), Marker Drawing Mode( "Normal" )}
),
Dispatch(
{},
"400",
LegendBox,
{Legend Position( {7, [6, 7, 8, 9, 10, 11], 11, [0, 1, 2, 3, 4, 5]} )}
)
)
);
Jim