1. In the worksheet On-Time Delivery, has the proportion of on-time deliveries in 2014 significantly improved since 2010?

On-Time Delivery
Month	Number of deliveries	Number On Time	Percent
Jan-10	1086	1069	98.4%
Feb-10	1101	1080	98.1%
Mar-10	1116	1089	97.6%
Apr-10	1216	1199	98.6%
May-10	1183	1168	98.7%
Jun-10	1176	1160	98.6%
Jul-10	1198	1181	98.6%
Aug-10	1205	1189	98.7%
Sep-10	1223	1210	98.9%
Oct-10	1209	1194	98.8%
Nov-10	1198	1180	98.5%
Dec-10	1243	1223	98.4%

Jan-14	1401	1390	99.2%
Feb-14	1388	1376	99.1%
Mar-14	1395	1385	99.3%
Apr-14	1412	1401	99.2%
May-14	1403	1392	99.2%
Jun-14	1415	1402	99.1%
Jul-14	1426	1415	99.2%
Aug-14	1431	1420	99.2%
Sep-14	1445	1426	98.7%
Oct-14	1425	1414	99.2%
Nov-14	1413	1403	99.3%
Dec-14	1456	1427	98.0%