Failure by either party to uphold or enforce any single aspect of this financial consulting services agreement shall not be construed as a waiver of any subsequent failures to uphold the entire scope of this agreement. In 2015, PNC was one of 22 companies that violated disclosure requirements for municipal bonds by failing to divulge that the issuers had filed late financial reports. Since 1984, PNC has compiled the Christmas Price Index, a humorous economic indicator which estimates the prices of the items found in the song "The Twelve Days of Christmas". PNC has sponsored several initiatives to improve education, health and human services, cultural activities and the arts. These include "PNC Grow Up Great", a commitment to early childhood development, the "PNC Foundation", and community development investments.