This table and the related pie aims to further refine the rhythmanalysis based on signs or advertisers' duraction by combining signs duration and the number of advertisers they respectfully hosted. Such combination has resulted in establishing nine rythmic profiles, noted by a letter from A to K (unknown). The typology is explained in the table, and the share occupied by each rhythmic profile is measured on the pie chart.

• 0: identical renewal of the contract
• 1: same advertiser, change of dimensions
• 2: same advertiser, change of location
• 3: change of advertiser, or space shared between two advertisers.

The pie chart shows that signs that enjoyed the shortest lifetime with a single advertiser lead the way (almost 30%), followed by longer signs with a single advertiser as well. Signs hosting two or more advertisers represent only a small minority, and the longer, the fewer (13% for shorter signs, and less than 10% for the longest signs).

The measurements are based on the regular lists of signs that Claude Neon Lights sent to the French Municipal Council between December, 20 1935 and December, 31 1937, plus a few scattered signs recorded in other files in the Shanghai Municipal Archives (French concession and International Settlement in 1931 and 1941).  Source: SMA (FC), U38-4-1114; SMA (SMC), U1-14-3261 (0246).