In the worksheetOn-Time Delivery,has the proportion of on-time deliveries in 2018 significantly improved since 2014?

Data:

On-Time Delivery

Month Number of deliveries Number On Time Percent

Jan-14 1086 1069 98.4%

Feb-14 1101 1080 98.1%

Mar-14 1116 1089 97.6%

Apr-14 1216 1199 98.6%

May-14 118 1168 98.7%

Jun-14 1176 1160 98.6%

Jul-14 1198 1181 98.6%

Aug-14 1205 1189 98.7%

Sep-14 1223 1210 98.9%

Oct-14 1209 1194 98.8%

Nov-14 1198 1180 98.5%

Dec-14 1243 1223 98.4%

Jan-15 1220 1201 98.4%

Feb-15 1241 1224 98.6%

Mar-15 1237 1217 98.4%

Apr-15 1258 1242 98.7%

May-15 1262 1246 98.7%

Jun-15 1227 1212 98.8%

Jul-15 1243 1227 98.7%

Aug-15 1281 1264 98.7%

Sep-15 1272 1254 98.6%

Oct-15 1295 1278 98.7%

Nov-15 1298 1281 98.7%

Dec-15 1318 1296 98.3%

Jan-16 1281 1264 98.7%

Feb-16 1320 1304 98.8%

Mar-16 1352 1334 98.7%

Apr-16 1336 1320 98.8%

May-16 1291 1276 98.8%

Jun-16 1342 1326 98.8%

Jul-16 1352 1337 98.9%

Aug-16 1377 1360 98.8%

Sep-16 1385 1368 98.8%

Oct-16 1356 1338 98.7%

Nov-16 1362 1346 98.8%

Dec-16 1349 1333 98.8%

Jan-17 1386 1371 98.9%

Feb-17 1358 1342 98.8%

Mar-17 1371 1356 98.9%

Apr-17 1362 1348 99.0%

May-17 1350 1338 99.1%

Jun-17 1381 1366 98.9%

Jul-17 1392 1378 99.0%

Aug-17 1371 1359 99.1%

Sep-17 1402 1387 98.9%

Oct-17 1384 1370 99.0%

Nov-17 1399 1377 98.4%

Dec-17 1369 1357 99.1%

Jan-18 1401 1390 99.2%

Feb-18 1388 1376 99.1%

Mar-18 1395 1385 99.3%

Apr-18 1412 1401 99.2%

May-18 1403 1392 99.2%

Jun-18 1415 1402 99.1%

Jul-18 1426 1415 99.2%

Aug-18 1431 1420 99.2%

Sep-18 1445 1426 98.7%

Oct-18 1425 1414 99.2%

Nov-18 1413 1403 99.3%

Dec-18 1456 1427 98.0%