+/** @type {Array.<Object>} */
+Dygraph.LONG_TICK_PLACEMENTS = [];
+Dygraph.LONG_TICK_PLACEMENTS[Dygraph.MONTHLY] = {
+ months : [0,1,2,3,4,5,6,7,8,9,10,11],
+ year_mod : 1
+};
+Dygraph.LONG_TICK_PLACEMENTS[Dygraph.QUARTERLY] = {
+ months: [0,3,6,9],
+ year_mod: 1
+};
+Dygraph.LONG_TICK_PLACEMENTS[Dygraph.BIANNUAL] = {
+ months: [0,6],
+ year_mod: 1
+};
+Dygraph.LONG_TICK_PLACEMENTS[Dygraph.ANNUAL] = {
+ months: [0],
+ year_mod: 1
+};
+Dygraph.LONG_TICK_PLACEMENTS[Dygraph.DECADAL] = {
+ months: [0],
+ year_mod: 10
+};
+Dygraph.LONG_TICK_PLACEMENTS[Dygraph.CENTENNIAL] = {
+ months: [0],
+ year_mod: 100
+};
+